Question

calcule o valor de x​

Answer 1

$\frac{2x - 2}{3x + 1} = \frac{4}{7} \\ 14x - 14 = 12x + 4 \\ 14x - 12x = 14 +4 \\ 2x = 18$

$x = \frac{18}{2} \\ x = 9$

Answer 2

Resposta:

Explicação passo-a-passo:

(2x - 2)/(3x + 1) = 4/7 =>

7(2x - 2) = 4(3x + 1) =>

14x - 14 = 12x + 4=>

14x - 12x = 4+ 14 =>

2x = 18 =>

x = 18/2 =>

x = 9