3-7х/2=12|*2
6-7х=24
-7х=24-6
-7х=18|:(-7)
х=-18/7
х=-2(4/7)
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3-7х/2=12|*2
6-7х=24
-7х=24-6
-7х=18|:(-7)
х=-18/7
х=-2(4/7)