Respuesta :

Answer:

x=-2    y=-6

Step-by-step explanation

5x+4=-3x-12

+3       +3x

8x+4=-12

    -4    -4

   8x=-16

  ÷8    ÷8

    x=-2

Looking for y too, plug x into the original equation

5(-2)+4

-10+4

-6

y=-6