Question

СРОЧНО!!!!!!СРОЧНО!!!!!!СРОЧНО!!!!!!​

Answer 1

Ответ:

$2x = \frac{3}{7} + \frac{1}{5} \\ 2x = \frac{22}{35} \\ x = \frac{11}{35}$

$5x + x = 135 \\ 6x = 135 \\ x = \frac{45}{2} \\ x = 22 \frac{1}{2}$

$3x = 10x - 12 \\ 3x - 10x = - 12 \\ - 7x = - 12 \\ x = \frac{12}{7} \\ x = 1 \frac{5}{7}$