Respuesta :

Answer:

(-2, 5)

Step-by-step explanation:

-4x+3y=23

x - y = - 7

x = y - 7

Substitution:

-4(y-7)+3y = 23

- 4y + 28 + 3y = 23

y = 23 - 28

-y = -5

y = 5

Substitution:

x - 5 = - 7

x = - 7 + 5

x - 2