решите уравнение (5/7)/(6/7 * x + 3/7) - 1/2 = 1/6

3/4

Пошаговое объяснение:

(5/7)/((6/7)x + 3/7) - 1/2 = 1/6

(5/7)/((6/7)x + 3/7) = 1/6 + 1/2

(5/7)/((6/7)x + 3/7) = 1/6 + 3/6

(5/7)/((6/7)x + 3/7) = 4/6=2/3

(6/7)x + 3/7 = 5/7 : 2/3

(6/7)x + 3/7 = 15/14

(6/7)x = 15/14 - 3/7

(6/7)x = 9/14

x = 9/14 * 7/6

x = 3/4