19 - 2(3x + 8) = 2x - 3719 - 6x - 16 = 2x - 373 - 6x = 2x - 37-6x - 2x = -37 - 3-8x = -40x = -40 / -8x = 5
Ответ: x = 5.
19 - 2(3x + 8) = 2x - 37
19 - 6x - 16 = 2x - 37
3 - 6x = 2x - 37
-6x - 2x = -37 - 3
-8x = -40
x = -40 / -8
x = 5
Ответ: x = 5.