Question

qual valor da equaçao 2x-40=X+40

Answer 1

$2x-40=x+40\\2x-x=40+40\\x=80$

Answer 2

Olá Gustavo !

$2x - 40 = x + 40 \\ 2x - x = 40 + 40 \\ x = 80$

Tenha bons estudos !