Respuesta :

kphung76127
Using substitution

-8x-4(2x-5)=-20
-8x-8x+20=-20
-16x+20=-20
-16x=-40
x=2.5

Plug x into one of the original equations.
y=2(2.5)-5
y=5-5
y=0

Final answer: 1 solution (2.5, 0)