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Автор - Svetlana99999

Найди неизвестное число 3 1/2*(2/3x+4/7)=2 1/3

Ответ

Автор - Галинка19071993

Ответ:

x=7

Пошаговое объяснение:

7/2*2/3x+7/2*4/7=2 1/3

7/3x+2=2 1/3

7/3x=2 1/3-2

7/3x=1/3

3x=7*3

3x=21

x=7

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