1) 4x - 2 = 184x = 18 + 24x = 20x = 20 / 4x = 5
2) 4x - 17 = 2x - 14x - 2x = 17 - 12x = 16x = 16 / 2x = 8
3) 5(x + 2) - x = 2x + 325x + 10 - x = 2x + 324x + 10 = 2x + 324x - 2x = 32 - 102x = 22x = 22 / 2x = 11
Ответ: x = 5; x = 8; x = 11.
1) 4x - 2 = 18
4x = 18 + 2
4x = 20
x = 20 / 4
x = 5
2) 4x - 17 = 2x - 1
4x - 2x = 17 - 1
2x = 16
x = 16 / 2
x = 8
3) 5(x + 2) - x = 2x + 32
5x + 10 - x = 2x + 32
4x + 10 = 2x + 32
4x - 2x = 32 - 10
2x = 22
x = 22 / 2
x = 11
Ответ: x = 5; x = 8; x = 11.