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Автор - юЛИЯ5gaika

1)выполните действие (х-5х/х+2):х-3/х+2. 2)среднее гармоническое чисел 3 6 9?спосибо!

Ответ

Автор - olya201013
(х-5х)*(х+2)/(х+2)(х-3)=х-5х/х-3
х-3=х-5х
5х=3
х=0,6

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