1. 9х-9=х+15
9х-х=15+9
8х=24
х=3
2. 11х+14-5х+8=25
6х=25-14-8
6х=3
х=0,5
3. 12-4х+12=39-9х
-4х+9х=39-12-12
5х=15
4. 6х+10-12х+3=11,8
- 6х=11,8-10-3
-6х=1,2
х=-0,2
1. 9х-9=х+15
9х-х=15+9
8х=24
х=3
2. 11х+14-5х+8=25
6х=25-14-8
6х=3
х=0,5
3. 12-4х+12=39-9х
-4х+9х=39-12-12
5х=15
х=3
4. 6х+10-12х+3=11,8
- 6х=11,8-10-3
-6х=1,2
х=-0,2