Предмет: Математика, автор: alim121283

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Автор ответа: ТатМих
0

Ответ:

20/7

Пошаговое объяснение:

-3/5х +1/4х=-3/7-4/7

-12/20х+ 5/20х=-7/7

-7/20х=-1

х=20/7

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