Solve a system of three variables
ฝัง
- เผยแพร่เมื่อ 10 ต.ค. 2012
- 👉Learn how to solve a system of three linear systems. A system of equations is a set of equations which are to be solved simultaneously. A linear equation is an equation whose graph is a straight line. The solution to a system of equations is a set of unique values of the variables for which each of the equation is satisfied.
✅ Solve a System of Equations 4 Examples - • Solve a System of Equa...
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✅Solve a System of Equations Using Substitution | Easy
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✅Solve a System of Equations Using Substitution | Learn About
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✅Solve a System of Equations Using Elimination | Learn About
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✅Solve a System of Equations Word Problem
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✅Solve a System of Equations With Three Variables
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✅ Solve a System of Equations 4 Examples - th-cam.com/play/PL0G-Nd0V5ZMpDSrQanGyCgmcmvt-C15Id.html
Guys, i actually got the following which still work:
z = -4 ; y = 8 ; x = 1
all are variables which fit in the equation. Strange that the teacher did't show that there areother solutions to this...?
Mr. McLogan,
I passed my college placement exam because of your videos. I am a non-traditional student who lost nearly all mathematical knowledge after high school. Thank you so much for uploading all of these great videos. They have been a tremendous help. I also passed my first college-level math exam with a 90 the other day.
Nice!
I am relating to u rn
Nice! 🎉🎉😀
yes! That’s great!
good job 👍
Dont you just love when a teacher explains the steps....thats crazy right
😂😂😂😂😂😂
You are true 😂
i feel u
tracher ?
@@sobirock you know I meant teacher lol
When you learn more from youtube than school itself.
Diablo X honestly
This is straight facts
I agree
Bruh my class is so slow, were still learning expressions and its been 2 months...probably some grade 4s in china have learned this already and were so behind omg.
Studying engr. Courses 101% troooo😆😆😆
Anyone else’s teacher not teach at all? 😅
sorry to hear
Brian McLogan Yeah :// but thankyou so much! I passed my test today !
awesome! congrats to you
he tries to make video notes like this one but they're nowhere near as good. These videos and some others like these are the only vids that are keeping me from failing
true that mate.
I like how he doesn’t say unnecessary complicated stuff that we don’t need to know at all. He just says the steps and makes it easy to understand.
You make a good point. That's what this video is for. Just remember that there are other Majors where all that complicated stuff is certainly going to be needed.
i like that your class is interactive, my class never answers any questions because we literally don’t know what our teacher is saying
LOL thats rough buddy
Lol😢
Same here, in my class we all just kinda stare at the teacher because he explains everything so much more complicated than it needs to be.
Thanks for the help. Nest time i go to the grocery store to buy food ill use this technique to figure out if my tomato soup is boneless
haha love it
hi mom I
Are you just dropping this joke on all of the 3 variable linear equation videos?
maxwell eckenrode, yah, he is.
Dude you are going to need more advanced math to figure that out
He's teaching me more than my Algebra 2 teacher does- and she made everyone who had her go close to failing the whole class.
Sorry to hear but so happy to help!!
I just learned more in about 13 minutes than I do in my 2 hour math class...
Mood
th-cam.com/video/Fv4krMaEvEk/w-d-xo.html
Facts
😂frrr
Better mentor than my school teacher thank you so much ,, you don't know how much your helping the youth ....it's really hard to find a teacher that actually even seems like they care about our education and I really appreciate it ❤️
Thanks a lot Tyronne.
Tyronne Patterson iSa
Christoper martinez jQf
superheroes don't wear capes, They wear blue shirts :)
So do crips
I'm wearing blue rn :O
saved me form an F on my quiz tomorrow to now expecting an A thank you sooo much.
KsO 1 how’d it go?
Soul-Eye Animations & More! He got an A
*F*
I wish I was smart at Math :( F
I know I’m 2 years late but how did I go?
learned more from this guy than my own algebra instructor.
I love how he labeled his equations I’m gonna start doing that bc I get lost in my own work
You have literally been the math tutor I have always needed! I wish I had you as my teacher, I would actually enjoy going to class and solving problems. These videos make my at home life so much easier!!
If you need other videos, I'd be happy to help too!
10:03 I THOUGHT I WAS THE ONLY ONE
I have expended over two hours with a rather convoluted problem for homework. I attempted to follow along with your instruction and the results were remarkable! Not only was I able to obtain the correct answer I can now elaborate on the rationale for doing what I did on this topic. You have my best regards.
Math is just throwing numbers around until it makes sense 😒. Like who really thought of this 😑
You make it a lot easier. The way you set it up makes it less confusing.
you are very welcome! happy to help
My teacher didnt even show us how to do this and gave us homework on it :D Thank you so much for your ever helpful videos
You know, some teachers are either not enthusiastic about teaching but are skilled and natural at it, or some like mine have the passion but not the talent. 😂 makes it so hard to learn what she is saying and she explains it so bad and this guy is over here explaining it perfectly. Amazing teacher
you are a good teacher. Thanks. well understood.
Your still helping kids that is struggling 8 years later wow.
Thanks
If you need fresh math videos, I got you covered! Brian does a good job too!
I tried using the book example to solve it, spent an hour getting the wrong answer, watched 5 minutes of this guy and got the right answer in 3 minutes
This is the best teacher ever.
OMG JUST WHAT I NEED
happy to help
Saving lives out here 😭😭 THANK YOUUUU
You are very welcome
Don't think I've ever watched a TH-cam math teacher simplify things and explain them so clearly and well. This teachers the goat
I have my midterm finals today, let me just say, this is super helpful! Thank you so much, the way you teach makes it super easy to learn and I totally wish you were my teacher 😂
My teacher just rushed it, didn't even go in depth. Then he let us solve it. I can honestly say 90% of the students did not understand it at all. Thank you for your teaching.
When you multiplied equation A and B how did you come up with -5 and 2?
Those are the scalars that allow me when multiplied to obtain the same coefficients for y so that y can be eliminated when I combine the equations
Betty Echavarria oh because basically when he did A he was multiplying a negative by negative giving him a positive, so to cancel out y he need B to be negative and positive 2 was a good solution for that
I had the same querie and the responses helped me a lot.Thanks:)
In fairness to teachers, no matter how you do or describe these types of equations, they always take forever and have a lot of variables that can accidentally be screwed up. In my class, no one liked this method because even if you can understand how to do it, it still takes forever. If you're clever, you can usually come up with usable shortcuts to math, but you always have to figure out X, Y, and Z the hard way.
We do it pretty quick on my channel... just sayin 😀
Absolute lifesaver. we are reviewing this in algebra 2 just for now, and i remembered how to do a regular 2 system, but forgot how to do a 3 system. i have so many after school activites and one of them cuts into my 7th period(math) which effectively cuts my learning. thank goodness this guy exists because i would be completely lost withought him
my algebra 2 teacher doesn’t explain it correctly and this video really saved my life cause i have a test on tuesday
I manually typed in the url for this video from a paper worksheet because I was so desperate for help. Thank you so much!!!
I have a test next period and this taught more well than my own teacher and I’m in Ap💀
You’re out here still saving lives. Thanks for the help👍
I love how Brian McLogan was like "so z is equal to -1, z, i mean x is equal to -1 and z is equal to 3." He must love the letter z haha.
Answer = (-1,3,-1). Z = -1 not negative 3. Don’t be confused he just said the wrong answer but did the right work.
dude i swear you and the organic chemistry tutor are the best math teachers on youtube, thank you so much for another helpful video!
I've learned more from this man than I did from my teacher
Mr. Mclogan needs to be paid his weight in gold! He's an incredible straight to the point instructor. God I wish he was my math teacher!
although this video was published 10 years ago, it is still helping so many people including me.. thank you teacher♥
teacher : z = 3
student: what is y?
teacher: *angry face* y is 3!
lol
Congratulations! you can teach and you actually make sense, my teacher on the other hand ehh
Thank you so much! You're the best math teacher I never had 😂
My teacher is good but goes over stuff veryyy quick. Thanks for this vid
Massive thanks to this guy, allows me to mess around in class, go home, watch a 10 min video and be better off than if I payed attention
We do it even faster on my channel. Take a look if you want more time to mess around 😉 or don't... up to you, but I bet you'd like my bumper video
Im taking alg 2 trig in school and since i did alg 1 two yrs ago i kinda forgot the fundamentals lol. U help me a lot. My teacher goes rly fast and never explains his steps. Thank u for helping
You’re better than my teacher 😂😂😂 i didn’t understand him but I understood you
Thanks, I was confused in my math class and didn’t want to ask for help, you just helped me a bunch!
7 year old video is better than 35 year old teacher ಥ‿ಥ
You are a good teacher i always remember my school days after watching your videos, love from india..😘
Guys, i actually got the following which still work:
z = -4 ; y = 8 ; x = 1
all are variables which fit in the equation. Strange that the teacher did't show that there areother solutions to this...?
How'd you come up with multiplying both equations by 3? Where'd you get the 3 from?
Believe me, my professor, that if you translate Arabic translation on your clips will spread and harvest high views
Thank you very much. So much easier than how my lecturer explained it. Now i will be able to pass my coursework and exam.
What class is this? Also great videos, very helpful for algebra and pre calculus!
solving 1+2, 1+3 would be easier because y is common for both 1st and 2nd equation. And 3z is common for 1st and 3rd equation.
2x + y + 3z = -2
x - y - z = -3. solve them by adding. You get 3x+2z=-5. Therefore, z= (-5 -3x)/2
Now,
2x + y + 3z = -2
3x - 2y +3z = -12. Solve them by subtracting. You get -x + 3y = 10. So, y=(10+x)/3
Now substitute all the values in any one of the equation:
x - y - z=-3
x - (10+x)/3 - (-5-3x)/2 = -3
Therefore x=-1
y= (10+x)/3 = 3
z= (-5-3x)/2 = -1
I hate algebra
I understand, we teach algebra not the way it should be taught
why? is so easy
Algebra is so much fun when you get it 😃
it's fun you're just dumb go drink some juice that is not from concentrate it will help make you smart
Yeah I hate it too I only like it when I get the right answer it takes a lot of work I used to not be that good at it but then I improved now I am reviewing it for an exam
Malaysian student will be learning this thing in secondary school. good luck guys.
I have a unit test today and my teacher spent 10 min teaching us this before and I didn’t understand anything. So thanks for the help
Thanks a lot! Very helpful 👌🏾👍🏾
you are very welcome!
Thank you so much! I keep re-reading my textbook and it just didn't make sense but this video helped a lot!
thank you for making these videos. i always come to your channel whenever i need help. my professor isn’t the best at teaching. well, i’m sure she’s great, but i learn at a slower pace. she shows us nothing but short cuts. it confuses me. your videos help me out tremendously because you explain every single step. thank you so much!
Very well understood.
Thank you !
"why is why" xD
sanaol nalang sa mga may teacher na ganito ;DD
Very helpful thank u so much 🙏🏾‼️
Dang you really helped me out for my test tomorrow, I know I'm 9 years late but thanks for finally making it click
This was very helpful, just the only bad thing with learning from videos is you can’t ask questions.
This great teacher deserves a noble price for saving the grades of desperate students in the midst of a pandemic 🙏
"yes no maybe so" the mantra of every math teacher ever haha
Have a test tomorrow and this video is really helping me with understanding this lesson thanks so much!
How’d it go
Currently 2 am and I have a test over this stuff tomorrow. You really helped me and now I’m able to sleep.
Bdhiya padhaya sir ne 👏👏👏👏
thank you so much, my teacher's way of explaining this was confusing so I looked for your vids and this helped me a lot :)
lmao your students are annoying but you're like the best teachers I've ever seen
Will O how are they annoying they’re trying to learn.
@@josephmiranda2056 the teacher is stating the obvious but the students are still asking questions
I think thats what he means
>tells students how to find Y
>now looking for X and Z
>five minutes later when they have moved on:
HEY WHAT'S Y?
That's a really great video on systems, Brian.
Thanks Max
This is torturous, but he makes it bearable. Thank you, Mr. McLogan you always come in clutch!
Thank you for this. I am taking college algebra and I was losing my mind trying for hours to figure this out. I despise everything about this subject.
This actually left me feeling a sense of accomplishment. Well done sir.
best explanation of how to do this ive seen out of all the other youtube videos i watched, thank you!
Is the end result of the two equations (A, B) always a 2 variable equation or ??
depends on the system
Like 5 weeks into school and my teacher doesn’t teach us anything. Plus my lam class is first period so he’s always writing notes instead of teaching. Just found out I have a test on this tomorrow.
I have no idea how to study and it’s worth 60 percent of my grade this is helping A LOT
Thank u so much sir.......i was having a lot of doubts with 3 variables......
Please do a vid on solving more than 3 eqns with more than 3 variables some what complex
This video really helped. Thank you so much 🙏🏾. I was studying for a math test on linear systems and forgot study this, but your video made me understand it very well. I understood what to do halfway through the video 😅👍🏾
You are very welcome Nathan
THANKS A LOT! underrated teacher, HE NEEDS TO TEACH THESE OTHER TEACHERS man...🙏🙏🙏
So much help!! begillien times better of a teacher then mine!
The best teacher I have ever seen in my life!! 😮
I feel like math should be taught online instead in person. My teacher goes too fast in the lesson which makes me stay really behind
My teacher doesn't explain at all
Coming from quarantine I can agree.
When you break the three together into two sets of two together - 1, 2, 3 into 1 & 2 and then 2 & 3 - do you have to multiply 3 times 2 for both - or could you put 3 times for one and then something else for the other? If 3 had different coefficients?
Firstly, always take the determinant of the matrix so that one doesn't waste one's time if and when the determinant is zero.
Cramer's rule is the best method.
It's so nice how you get to understand the steps thoroughly on yt.
How do you find the number of possibilties of solutions for three variables with an n coefficient? Ex. 3x + 2y + 5z = 180. Whoever knows the answer, godbless.
I’m going to have to watch this a couple of times to understand it 😁
Something you did 9 years ago is still helping society great job.
Thank you so much my teacher overcomplicates everything, I love you.
The class was excellent but at the end I think there was some confusion since -2+3you get negative 1..if you correct that I think all will be well . thanks alot good people 🤝🤝🤝
Why must we multiple by 3 or can't we use another number?
Where did you get the 3 so you can multiply them?