Question

por favor a resposta de
x/3 - 4 = 6
2 . (x + 1 ) = 12
2x + 1 = 12

Answer 1

$\frac{x}{3} - 4 = 6$ ⇒ $\frac{x - 12}{3} = 6$ ⇒ x - 12 = 18 ⇒ x = 18 + 12⇒ x = 30

2·(x + 1) = 12 ⇒ 2x + 2 = 12 ⇒ 2x = 10 ⇒ x = 5

2x + 1 = 12 ⇒ 2x = 11 ⇒ x = $\frac{11}{2}$