Ответ:
5а+20+3а=6а-8
8а+20=6а-8
8а-6а=-8-20
2а=-28
а=-28:2
2=-14
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Ответ:
5а+20+3а=6а-8
8а+20=6а-8
8а-6а=-8-20
2а=-28
а=-28:2
2=-14