1. 2-3(2х+2)=5-4х
2-6х-6=5-4х
-2х=9
х=-4,5
2. 10х+9=7х
3х=-9
х=-3
3. 10(х-9)=7
10х-90=7
10х=97
х=9,7
4. 2х+2=-3
2х=-5
х=-2,5
5. 4х+7=0
4х=-7
х=-1,75
1. 2-3(2х+2)=5-4х
2-6х-6=5-4х
-2х=9
х=-4,5
2. 10х+9=7х
3х=-9
х=-3
3. 10(х-9)=7
10х-90=7
10х=97
х=9,7
4. 2х+2=-3
2х=-5
х=-2,5
5. 4х+7=0
4х=-7
х=-1,75