Respuesta :

BIKMA

Step-by-step explanation:

y = 4x + 20

8x -2y = -20

8x - 2(4x + 20) = -20

8x - 8x - 40 = -20

8x - 8x = -20 + 40

0 = 20, so x = 0

y = 4x + 20

y = 4(0) + 20

y = 20