Question

(3х-1) / 7 - (2х + 3) / 5 = 1;

Answer 1

Ответ:

61

$\frac{3x - 1}{7} - \frac{2x + 3}{5} = 1$

$5(3x - 1) - 7(2x + 3) = 35$

$15x - 5 - 14x - 21 = 35$

$x - 26 = 35$

$x = 35 + 26$

$x = 61$