Question

Resolva a equação :

$\frac{x}{2} + \frac{x}{3} = \frac{7 + 2 x }{3}$

Answer 1

Vamos lá:

$\frac{x}{2} + \frac{x}{3} = \frac{7+2x}{3} \\\\ \frac{x}{2} = \frac{7+2x}{3} - \frac{x}{3} \\\\ \frac{x}{2} = \frac{7+2x-x}{3} \\\\ \frac{x}{2} = \frac{x+7}{3} \\\\ 2(x+7) = 3x \\\\ 2x + 14 = 3x \\\\ 3x-2x = 14 \\\\ \fbox{x = 14}$

Espero ter ajudado.