Question

determine o valor de x na equaçao 3x\4 - 2\3 = x - 5\2

Answer 1

Resposta:

$\sf \dfrac{3x}{4} - \dfrac{2}{3} = x - \dfrac{5}{2}$

$\sf \dfrac{9x}{12} - \dfrac{8}{12} = \dfrac{12x}{12} - \dfrac{30}{12}$

$\sf 9x - 8 = 12x - 30 \\9x - 12x = - 30 + 8\\-3 x = - 22\\\\ x = \dfrac{- 22}{- 3} \\\\x = \dfrac{22}{3}$

Explicação passo-a-passo:

Achar o m.m.c de ( 2, 3, 4) = 12

Cancela os denominadores  para calcular o valor de x: