Ответ:
х=7
3(6-2х)-5-х=-36
18-6х-5-х=-36
13-7х=-36
-7х=-36-13
-7х=-49
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Ответ:
х=7
3(6-2х)-5-х=-36
18-6х-5-х=-36
13-7х=-36
-7х=-36-13
-7х=-49
х=7