Предмет: Математика, автор: bekalooksana

Возраст дочки 2/7 от возраста матери, сколько лет дочки если мать старшая на 20 лет.

Ответы

Автор ответа: andr2616
0

Пошаговое объяснение:

2/7 x =x-20

Надо только решить, x - возраст дочки

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