Question

por favor
x + x/2 = 3

Answer 1

Olá Nando !

$x + \frac{x}{2} = 3 \\ \\ MMC = 2 \\ \\ \frac{2x}{2} + \frac{x}{2} = \frac{6}{2} \\ \\ 2x + x = 6 \\ 3x = 6 \\ x = \frac{6}{3} \\ x = 2$

Tenha bons estudos !