Решение:
50x - 48(x - 3) = -56
50x - 48x + 144 = -56
2x + 144 = -56
2x = -56 - 144
2x = -200
x = -200 / 2
x = -100
Ответ: x = -100.
Решение:
50x - 48(x - 3) = -56
50x - 48x + 144 = -56
2x + 144 = -56
2x = -56 - 144
2x = -200
x = -200 / 2
x = -100
Ответ: x = -100.