1) 3х + 1.8 = 3-х
4х = 1.2
х= 0.3
2) 5х - 3х = -2
2х = -2
х = -1
3) 2х + 2.4 = 2.7
2х = 0.3
х= 0.15
4) 2х = -3
х = -1.5
1) 3х + 1.8 = 3-х
4х = 1.2
х= 0.3
2) 5х - 3х = -2
2х = -2
х = -1
3) 2х + 2.4 = 2.7
2х = 0.3
х= 0.15
4) 2х = -3
х = -1.5