Respuesta :
times both sides by 8
-80=7(10+5x)
distribute
-80=70+35x
minus 70 both sides
-150=35x
divide both sides by 35
-30/7=x
x=-30/7
-80=7(10+5x)
distribute
-80=70+35x
minus 70 both sides
-150=35x
divide both sides by 35
-30/7=x
x=-30/7