Ответ:
х=2
14х=12+8х
6х=12
...
6-х-3(2-5х)=12+8х
6-х-6+15х=12+8х
6-х-6+15х-12-8х=0
6х-12=0
6х=0+12
х=12/6
Х=2
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Ответ:
х=2
14х=12+8х
6х=12
х=2
...
6-х-3(2-5х)=12+8х
6-х-6+15х=12+8х
6-х-6+15х-12-8х=0
6х-12=0
6х=0+12
6х=12
х=12/6
х=2
Х=2