Respuesta :
Answer:
y = -21
Step-by-step explanation:
-6x + 2y = -18
-3x - 2y = 54
3x = -2y - 54
-2(2y - 54) + 2y = -18
6y = -126
y = -21
Answer:
y = -21
Step-by-step explanation:
-6x+2y = -18
-3x-2y = 54
Multiply the second equation by -2
-2(-3x-2y) = 54*-2
6x +4y = -108
Add this to the first equation to eliminate x
6x +4y = -108
-6x+2y = -18
-----------------------
6y = -126
Divide by 6
6y/6 = -126/6
y = -21