2х-7=6
2х=6+7
х=13:2
х=6.5
4х+10=-10
4х=-10-10
х=-20:4
х=-5
2х-10=-3
2х=-3+10
х=7:2
х=3.5
2х+6=8
2х=8-6
х=2:2
х=1
-2х-3=1
-2х=1+3
х=4:(-2)
х=-2
-5х+9=-6
-5х=-6-9
х=15:5
х=3
-4х+4=-6
-4х=-6-4
х=10:4
х=2.5
-5х-1=4
-5х=4+1
х=5:(-5)
х=-1
-4х+8=-7
-4х=-7-8
х=-15:4
х=3.75