Question

Resultado da expressao -x+40=4x

Answer 1

-x + 40 = 4x
-x - 4x = -40 (x -1)
x+ 4x = 40
5x=40
x=40/5
x=8

Answer 2

-x+40=4x
-x-4x=-40
-5x=-40.(-1)
5x=40
x=$\frac{x}{y} 5 40$
x=8