Ответ:
х/(х-7)-49/(х²-7х)=0
х/(х-7)-49/(х*(х-7))=0
х≠7
х²-49=0
(х-7)(х+7)=0
х-7=0 х=7
х+7=0 х=-7.
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Ответ:
х/(х-7)-49/(х²-7х)=0
х/(х-7)-49/(х*(х-7))=0
х≠7
х²-49=0
(х-7)(х+7)=0
х-7=0 х=7
х+7=0 х=-7.