Question

261. Решить уравнение:
1) 3(x - 1) - 2(3-7x) = 2(x - 2);

Answer 1

Ответ:

3(x - 1) - 2(3-7x) = 2(x - 2)

3х-3-6+14х = 2х-4

3х+14х-2х = -4+3+6

15х = 5

х = 1/3