9x - 6(-2 + x) = -7(5x) + 29x + 12 - 6x = -35x + 23x + 12 = -35x + 23x + 35x = 20 - 138x = x = 8 / 3x = 4 / 19
Ответ: x = 4 / 19
9x - 6(-2 + x) = -7(5x) + 2
9x + 12 - 6x = -35x + 2
3x + 12 = -35x + 2
3x + 35x = 20 - 1
38x =
x = 8 / 3
x = 4 / 19
Ответ: x = 4 / 19