Объяснение:
1)
2) x = -4/9 : 4
x = -1/9
3) -3x = -57
x = 57 :3
x = 19
4) 4 - 22 = 5x + x
6x = -18
x = -3
5) 16 = 2x + 3x
5x = 16
x = 16:5
x = 3.2
6) 18 = 5x - 3x
2x = 18
x = 9
7) 38 - 18 = 5x - 3x
2x = 20
x = 10
8) 6x - 2x = 45 - 17
4x = 28
x = 7
Объяснение:
1)
2) x = -4/9 : 4
x = -1/9
3) -3x = -57
x = 57 :3
x = 19
4) 4 - 22 = 5x + x
6x = -18
x = -3
5) 16 = 2x + 3x
5x = 16
x = 16:5
x = 3.2
6) 18 = 5x - 3x
2x = 18
x = 9
7) 38 - 18 = 5x - 3x
2x = 20
x = 10
8) 6x - 2x = 45 - 17
4x = 28
x = 7