3 years ago

Solve. X = -7 4x - 4y = 12 (x,y)

Mathematics

1 answer:

Fynjy0 [20]3 years ago

4 0

Answer:

(-7, -10)

$x=-7\\y=-10$

Step-by-step explanation:

$4x-4y=12$

Substitute x for -7.

$4(-7)-4y=12$

Multiply 4 by -7.

$-28-4y=12$

Add 28 on both sides.

$-4y=40$

Divide -4 on both sides.

$y=-10$

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