1.2-3(2х+2)=5-4
2-6х-6=1
-6х-4=1
-6х=5
х=-5/6
2. 5-2х=11-7(х+2)
5-2х=11-7х-14
5-2х=-7х-3
-2х+7х=-3-5
5х=-8
х=-8/5=-1,6
3. 3х+5+(х+5)=(1-х)+4
3х+5+х+5=1-х+4
4х+10=-х+5
4х+х=-10+5
5х=-5
х=-1
4. 10х+9=7х
10х-7х=-9
2х=-9
х=-4,5
5. -х-2+3(х-3)=3(4-х)-3
-х-2+3х-9=12-3х-3
2х-11=-3х+15
2х+3х=11+15
5х=26
х=5,2