Question

EXERCÍCIOS
(resolva descobrindo o valor do termo x desconhecido faça a continha
b) 3. (x+2) + 5 = x + 12 R:1/2​

Answer 1

Olá,

$3(x + 2) + 5 = x + 12$

$3x + 6 + 5 = x + 12$

$3x + 11 = x + 12$

$3x - x = 12 - 11$

$2x = 1$

$x = \frac{1}{2}$