Предмет: Математика, автор: ivanlovalenko6

x:3/7=21/31 помогите пдпдпжпжпжпдпж

Ответы

Автор ответа: iramazurk

1

Пошаговое объяснение:

х : 3/7 = 21/31

х = 21/31 * 3/7

х = 3/31 * 3/1

х = 9/31

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