United States Space Shuttle dinitrogen tetroxide was reacted with methylhydrazine| Enthalpy|SQA|Saad

In the United States Space Shuttle, dinitrogen tetroxide was reacted with
methylhydrazine.
4CH3NHNH2(ℓ)  + 5N2O4(ℓ)  ↓ 4CO2(g) + 12H2O(g) + 9N2(g)
Calculate the enthalpy of this reaction, in kJ, by using the data shown
below.
C(s) + 3H2(g) + N2(g) ↓ CH3NHNH2(ℓ) ∆H = +54 kJ mol−1
N2(g) + 2O2(g) ↓ N2O4(ℓ) ∆H = −20 kJ mol−1
C(s) + O2(g) ↓ CO2(g) ∆H = −394 kJ mol−1
    Η2(g) + 1/2Ο2(g) ↓ Η2Ο(ℓ) ∆H = −286 kJ mol−1
H2O(l) ↓ H2O(g) ∆H = +41 kJ mol−1