Question

$x+3(x-\frac{1}{2})=\frac{5}{4}$
Ajuda.

Answer 1

Olá!

$x+3\cdot\left(x-\dfrac{1}{2} \right)=\dfrac{5}{4} \\ \\ \\ x+3x-\dfrac{3}{2} =\dfrac{5}{4} \\ \\ \\ x+3x=\dfrac{5}{4} +\dfrac{3}{2} \\ \\ \\ 4x=\dfrac{5+6}{4} \\ \\ \\ 4x=\dfrac{11}{4} \\ \\ \\ 4\cdot 4x=11\\ \\ 16x=11\\ \\ \\ \boxed{x=\dfrac{11}{16} }$

:)