7 - 3(2 - x) = 5x - 27 - 6 + 3x = 5x - 21 + 3x = 5x - 23x - 5x = -2 - 1-2x = -3x = 3/2
Ответ: x = 3/2
7 - 3(2 - x) = 5x - 2
7 - 6 + 3x = 5x - 2
1 + 3x = 5x - 2
3x - 5x = -2 - 1
-2x = -3
x = 3/2
Ответ: x = 3/2