Question

Resolva a equação 5.(2x + 3) = 25.

A) 1

B) 4

C) 10

D) 22

E) 55

Answer 1

Passo a passo:

$5\cdot(2x+3)=25\\ \\\\ 2x+3=\dfrac{25}{5} \\ \\ \\ 2x+3=5\\ \\ 2x=5-3\\ \\ 2x=2\\ \\ \\ x=\dfrac{2}{2} \\ \\\\ \boxed{x=1}$

Resposta:

Alternativa a)

:)