b = -7-7x = -42 -7-7х = -49х = 7
Ответ:
7*b=b-42 или 42=-6*b илиb=-7
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b = -7
-7x = -42 -7
-7х = -49
х = 7
Ответ:
7*b=b-42 или 42=-6*b илиb=-7