Relax

Respuesta :

{x= 8 + y
{-2x + 6y= -20

-2(8+y) + 6y = -20
-16 - 2y + 6y = -20
4y = -20 + 16
4y = -4
y = -1

x = 8 + y = 8 + (-1) = 7

Answer: x = 7,  y = -1