Автор - 1234567890zu

7 7/30 - (5 11/30 - y) = 3 19/30 решите уравнение срочно!!!!!!!

Ответ

Автор - jekadva
7 frac{7}{30} -(5 frac{11}{30} -y)=3 frac{19}{30}  \ 5 frac{11}{30} -y=7 frac{7}{30} -3 frac{19}{30}  \ 5 frac{11}{30} -y=3 frac{18}{30}  \ y=5 frac{11}{30} -3 frac{18}{30}  \ y=1 frac{23}{30}

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