Question

3х+2/7=4х-1/5 даю 20 баллов

Answer 1

$3x + \frac{2}{7} = 4x - \frac{1}{5} \\ 3x - 4x = - \frac{1}{5} - \frac{2}{7} \\ - x = - \frac{17}{35} \\ x = \frac{17}{35}$

Answer 2

Пошаговое объяснение:

(3х + 2)/7 = (4х - 1)/5

5(3х + 2) = 7(4х - 1)

15х + 10 = 28х - 7

15х - 28х = -7 - 10

-13х = -17

х = -17/-13

х= 17/13

х = 1 4/13