Question

Tentukan hp dari persamaan x+2y=-5 dan 3x+5y=-4...

Answer 1

X + 2y = -5 | x 3 |


3x + 6y = -15
3x + 5y = -4
------------------ -
y = -11

x + 2y = -5
x + 2(-11) = -5
x - 22 = - 5
x = -5 + 22
x = 17

HP = {17 , -11}