Пошаговое объяснение:
9x - 7 = 6x + 14
9x - 6x = 14 + 7
3x = 21
x = 21 : 3
x = 7
3(4 - 2x) + 6 = -2x + 4
12 - 6x + 6 = -2x + 4
18 - 6x = -2x + 4
6x - 2x = 18 - 4
4x = 14
x = 14 : 4
x = 3,5
Пошаговое объяснение:
9x - 7 = 6x + 14
9x - 6x = 14 + 7
3x = 21
x = 21 : 3
x = 7
3(4 - 2x) + 6 = -2x + 4
12 - 6x + 6 = -2x + 4
18 - 6x = -2x + 4
6x - 2x = 18 - 4
4x = 14
x = 14 : 4
x = 3,5