1) 4х - 8 = 8
4х = 8 + 8
4х = 16
х = 4
2) 5х - 2х + 4 = 8
5х - 2х = 8 - 4
3х = 4
х = 4/3 = 1 1/3 (одна целая одна третья)
3) 7 - 3 = 4
4) 4х = 16
5) х - 2 (3х - 1) = 12
х - 6х - 2 = 12
х - 6х = 12 + 2
- 5х = 14
х = - 2,8
1) 4х - 8 = 8
4х = 8 + 8
4х = 16
х = 4
2) 5х - 2х + 4 = 8
5х - 2х = 8 - 4
3х = 4
х = 4/3 = 1 1/3 (одна целая одна третья)
3) 7 - 3 = 4
4) 4х = 16
х = 4
5) х - 2 (3х - 1) = 12
х - 6х - 2 = 12
х - 6х = 12 + 2
- 5х = 14
х = - 2,8