Ответ:
а)12х+21+2=32х-12
12х-23х=-12-21-2
-11х=-11
х=1
б)7-6х-3=10
-6х=-7+3+1
-6х=6
х=-1
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Ответ:
а)12х+21+2=32х-12
12х-23х=-12-21-2
-11х=-11
х=1
б)7-6х-3=10
-6х=-7+3+1
-6х=6
х=-1