Respuesta :

anjaspahiu2007

Step-by-step explanation:

x - 2y = -4

x = 2y - 4

2y - 4 - 2y = -4

2y - 2y = 0

0 = 0

y = 0

x = 2 × 0 - 4

x = 0 - 4

x = -4

ematthewssss6

Answer:

Step-by-step explanation:

(x-2y=-4)

(x=2y-4)

(2x+y=-8)

-y+8=2x

x=4-.5