Respuesta :
We have to isolate x.
-7x + 35 = 20 - 7x
Add 7x to both sides.
35 = 20 + 0
35 = 20
This line is impossible to graph.
-7x + 35 = 20 - 7x
Add 7x to both sides.
35 = 20 + 0
35 = 20
This line is impossible to graph.