Respuesta :

texaschic101
x + 8 = -x + 7

it can be set up like this :
y = x + 8
y = -x + 7
dannielle
it is the first choice
y=x+8
y= -x+7

x+8=-x+7
x+x=7 - 8

2x= -1
x= -1/2