Respuesta :

Answer:

Step-by-step explanation:

x+y=-8

x-y=12

—————

2x=4 so x=2

and if x=2, 2+y=-8 so y is -10 so now if you plug it into each other. it becomes

2+-10=-8

2- -10=12

(2 negatives becomes a add)

i feel smart