x = -2
Пошаговое объяснение:
3(1-x) + 5(x+2) = 1 - 4x
3 - 3x + 5x + 10 = 1 - 4x
13 + 2x = 1 - 4x
2x + 4x = 1 - 13
6x = -12
x = -2
Пошаговое объяснение:
3(1-x) + 5(x+2) = 1 - 4x
3 - 3x + 5x + 10 = 1 - 4x
13 + 2x = 1 - 4x
2x + 4x = 1 - 13
6x = -12
x = -2