Question

X/2 - 3/4 = x/5 - 1/2

Answer 1

Resposta:

$\frac{x}{2} - \frac{3}{4} = \frac{x}{5} - \frac{1}{2} \\ \frac{x}{2} - \frac{x}{5} = \frac{3}{4} - \frac{1}{2}$

Fazendo mmc de 2,2,4 e 5 dá 20. Portanto

$\frac{10x - 4x}{20} = \frac{15 - 10}{20} \\ 6x = 5 \\ x = \frac{5}{6}$