Question

1560 решите уравнение 3) и 4)​

Answer 1

Ответ:

$3) \frac{x}{3} - \frac{x}{15} = \frac{x}{5} + \frac{2}{3} \\ 5x - x = 3x + 10 \\ 4x - 3x = 10 \\ x = 10$

$4) \frac{x}{8} - \frac{x}{6} = \frac{x}{4} - \frac{7}{8} \\ 3x - 4x = 6x - 21 \\ - x - 6x = - 21 \\ - 7x = - 21 \\ x = 3$