Question

Resolva
A) x + 2/3 + X -4/5 = 1

B) 3 (x + 2) - (x - 5) = 10

Answer 1

Bom dia!!!

$a) \: x + \frac{2}{3} + x \frac{ - 4}{5} = 1 \\ 2x - \frac{2}{15} = 1 \\ 2x = 1 + \frac{2}{15} \\ 2x = \frac{17}{15} \\ x = \frac{17}{30} \\ \\ b) \: 3(x + 2) - (x - 5) = 10 \\ 3x + 6 - x + 5 = 10 \\ 2x + 11 = 10 \\ 2x = 10 - 11 \\ 2x = - 1 \\ x = \frac{ - 1}{2}$

Espero ter ajudado!