I just want to thank you for helping me as I was frustrated and confused on this topic, and its not easier to learn from online learning but you made it possible!
Such an amazing teacher and explanation! Thank you so much, you are they reason as to why I got a 100 on this topic. You are a true lifesaver. Definitely 10/10
How i wish sir I will be with your class.. that was an awesome explanation than my professor was.. Great, thank you for the beneficial teachings sir.. I saluted you
Your lessons rock. I always get confused as hell with my prof but you explain things really really well. Thanks for your efforts its very much appreciated.
Hello, thank you. 😊 you helped me keep my equations nice and organized. No more getting them mixed up! 3 hours later I found this video and another you made while trying to complete my homework. Thanks again!
I must say thank you alot....i tried many times to solve a sum like this....at last i find your video sir....then i catch up the way and now i am okay sir....thank you sir for making a such a confidence on me sir
It's a 10-year-old video and I don't know if anyone came up with this trick: 3x-2y+4z=35 -4x+y-5z=-36 Multiply the second equation by -1 and you get 4x-y+5z=36 Now you deduct Equation 1 from Equation 2 and you get this very simple equation: x+y+z=1 => y=1-x-z From equation 2 you have (y=)4x+5z-36=1-x-z If you rearrange this equation, you get 5x+6z=37 Now you use Equation 3: 5x-3y+3z=31 From these two equations, you can eliminate 5x and you get the simple equation: 3y+3z=6 => y+z=2 Now remember the easy equation you found before: x+y+z=1 if y+z=2, then x=-1 5x+6z=37 =>z=(37+5)/6 z=7 y+z=2 y=-5 Done.
FYI, I’d been watching some videos using Gaussian or Gauss-Jordan elimination to solve such systems. I’ve used that on systems in these and other Algebra 1 videos and of course I get the same answers. This one, however, gets real messy real fast IF you try for values of 1 along the principal diagonal. I tried solving just getting zeroes below the principal diagonal and back-substituting--worked fine. I know that Gaussian or Gauss-Jordan elimination is a bit above the level of these students-I was just curious to try it.
I actually give up with systems of equations bro its been 3 weeks i've been trying to understand 3 variables and it just doesent work. RIP my highschool diploma and college degree lol
You have to multiply two equations by a number that will make them the same, for example, if x is 5 in the first equation and x is 10 in the second one. you must multiply the first one by 2 in order to make the x equal 10
this man is the only thing keeping me from failing math
fr
You can make mistakes along the steps of solving this but for sure it's nothing difficult .
I got quarantined and online learning with my teacher was prettt tough.. this made me understand way better, keep doing what you’re doing!
Who else is here because they have exam tomorrow
Adetunji Salmon
Nope
yes
wish me luckkkkk
Yep
In 2 hours
I just want to thank you for helping me as I was frustrated and confused on this topic, and its not easier to learn from online learning but you made it possible!
Such an amazing teacher and explanation! Thank you so much, you are they reason as to why I got a 100 on this topic. You are a true lifesaver. Definitely 10/10
Awesome explanation! Definitely understood your video more than at school
sweet! happy to be able to help you out!!!
@@brianmclogan any other way to slove ?? sir short cut
@@kamalm561 2 years late 💀
What a magician in teaching!!!! Explained it to me in 14 minutes compared to my teacher who took 3 days 🙌🏽
Brian Mc logan for president
You are an amazing instructor. You have the most clearest and engaging video on this topic so far.
How i wish sir I will be with your class.. that was an awesome explanation than my professor was..
Great, thank you for the beneficial teachings sir.. I saluted you
cheers! Jessie! happy to be able to help you out!
Wow, Is this you sir? The man who is in the video?
yes it was him
I suck at math , and lowkey gives me anxiety but honestly this is so helpful . If only teachers taught like this
This was a big help, my teacher is Russian and I can’t really understand what’s she say sometimes. So this is very helpful. Thank you
Thank you sir. I didn't know that we can solve equations like that. Really thank you so much
Very helpful. I managed to get a 95% on my test. Keep up the helpful content!
These videos are quite helpful. I was struggling for a while but these videos made it click for me.
Thank you so much! You have no idea how many times you've saved me...
this man has no idea how much his videos help me when I start something new in math.
So happy to help you out!!
Amazing and fabulous 😍 you have explained it for everybody to understand thank you Mr 🙏 and be blessed 🙏😊
Your lessons rock. I always get confused as hell with my prof but you explain things really really well. Thanks for your efforts its very much appreciated.
13:43 Amazing content! I really like your content. You serve the best ways to solve math.
Thank you Brian, God bless you. 😃❤ May you and your family have a happy holidays.
😍😍😍
Thank you so much. You explain it better than most people.
Thanks for this! I’m a sixth grader doing this type of math and I really didn’t understand it until I came across your video! Thank you soooo much!
You are very welcome!!
Same I am 6 grade
Hello, thank you. 😊 you helped me keep my equations nice and organized. No more getting them mixed up! 3 hours later I found this video and another you made while trying to complete my homework. Thanks again!
You are very welcome Christina
More power to you sir Brian
Thank you so so much I love how you teach ❤
Thank you so much!
Thank you!!
thank you Mr Mclogan. hope you have a day that's as amazing as you're.
This was very helpful! Even two years later lol
I thank you I needed this vid to study👍
Bro is a good s tier teacher no cap straight fax
Mr. Brian is the GOAT
Helped bring back my soul to life.
this helped so much, thank you!!!
Thank you sir. Love from Bangladesh
I must say thank you alot....i tried many times to solve a sum like this....at last i find your video sir....then i catch up the way and now i am okay sir....thank you sir for making a such a confidence on me sir
Great explanation! Helped alot
How do I put each equation into standard form?
You are awesome! Especially with Covid and having to do and learn M03 algebra via zoom 😩 Thank you!
It's a 10-year-old video and I don't know if anyone came up with this trick:
3x-2y+4z=35
-4x+y-5z=-36
Multiply the second equation by -1 and you get
4x-y+5z=36
Now you deduct Equation 1 from Equation 2 and you get this very simple equation:
x+y+z=1 => y=1-x-z
From equation 2 you have
(y=)4x+5z-36=1-x-z
If you rearrange this equation, you get
5x+6z=37
Now you use Equation 3:
5x-3y+3z=31
From these two equations, you can eliminate 5x and you get the simple equation:
3y+3z=6 => y+z=2
Now remember the easy equation you found before:
x+y+z=1
if y+z=2, then
x=-1
5x+6z=37 =>z=(37+5)/6
z=7
y+z=2
y=-5
Done.
Thank you brian
Thanks bro, your way better than my teacher, this really helped me out 🙏🏿
we can also use determinant method to solve this type of question determinant method takes less time
Is it right?
Honourable Sir ......
Please tell me .... which is the best book of INEQUALITY in maths to understand it deep and detail ..... Sir .... ?????
And what if the x is the same
Like for example
A, 17x+17z=17
B, 17x+14z=10
And the answer of mind is fraction
Thank you in advance
Thank you so so much
you are an absolute god bro thank you my teacher didn’t know how to explain shiz
you are young man still that make clear on this topic!
This was 9 years ago and you just helped me better then my teacher 😭
Oh iam watch the video twice after now how to solve thanx my teacher repeet it 5 times iam dont anderstand any thing thsnx best teacher😅😅
Happy to help!
THANK YOU!!!!!
Thank God for you
Thanks Brian, can always rely on you to 1 up my professors lol
Got the regions in 25 minutes lmao
thank you Legend
Thank
Wish I was in this class
Coming in 2021, I am watching your video, from Bangladesh😍. Your video is very useful😇. I don't have the language to thank you😇😊
Thaaaaaaaaaaaaaaaaank you soooooo much 😘😘😘😘😘😘
you are very welcome!
FYI, I’d been watching some videos using Gaussian or Gauss-Jordan elimination to solve such systems. I’ve used that on systems in these and other Algebra 1 videos and of course I get the same answers. This one, however, gets real messy real fast IF you try for values of 1 along the principal diagonal. I tried solving just getting zeroes below the principal diagonal and back-substituting--worked fine.
I know that Gaussian or Gauss-Jordan elimination is a bit above the level of these students-I was just curious to try it.
Got it❤
Amazing explanation
thank you!
this youtube channel is the only thing keeping the economy afloat
LOVE your videos! thank you for this..if i pass, itll be because of you
happy to help Fatima!
You are a great teacher
i understood this lesson faster than reading the book lol, thank you so much!
GOD BLESS YOUR GENIUS BALD HEAD
I wanna lick it
I'm confused with when to use add or subtract, please clarify
What if the first equation is given in form of a simultaneous equation but the second and third and in the normal gaussian form
Thanks im now able to solve all equations involving 3 variables
Yes!!
Thanks bro
SS: {(-25,-49,3)} or x=-25, y=-49, z=3 Maybe this can be answer too
I literally love you
I actually give up with systems of equations bro its been 3 weeks i've been trying to understand 3 variables and it just doesent work. RIP my highschool diploma and college degree lol
This video helped understand this shit better my professor
Why’d you multiply equation (A) by 2?
So that the z value will become the same as equation (b)
how did you get the 10 at the end?
i study in grade 9 and this was helpful
lots of love from nepal
Its possible that the answer is fraction?
sure
Thank you sir your video is easy to understand
happy to help
It seems like it is.
Brian McLogan Hello Brian! My teacher told me I should NEVER get a fraction during this process; Maybe she was referring to the WORKSHEET she gave us?
What if in trying to eliminate one variable you eliminate two by accident
It happens :)
Thank you very much!
I understand this now :)⁹
My brain hurts man i h8 math
When do you know is a no solution?
when you have an equation that is not true like 3=0
Thankssss sm!
you are very welcome!
Cramers method is easier than elimination method to solve a system of equations in three variables.
Of course,
Can someone explain why did he multiply equation A by 2 that's the only thing confusing me with elimination
You’re more helpful then my teacher
THANK YOU
happy to help Lauren
Amazing
happy to help Ali
Bro I did not understand this on my 3 hour online class but somehow managed to understand it in 15 mins WTF
What if I dont have any variables with the coefficient 1?
You have to multiply two equations by a number that will make them the same, for example, if x is 5 in the first equation and x is 10 in the second one. you must multiply the first one by 2 in order to make the x equal 10
cam you do two equations where z is any real number?
Love u man
😍😍😍
watching this even tho I’m in algebra 1 and ten years later
I love math from now! ♥️♥️♥️
Can you teach me privately calculus?
Bruh my brain 😭
Did you get that Ricardo?
For anyone wondering what math this is its algebra 2