Предмет: Математика, автор: k270920101987

знайти коріння рівняння 3/7у+1/21у-5/14у=10/21​

Ответы

Автор ответа: Аноним
1

Ответ:

\frac{3}{7} y + \frac{1}{21y} - \frac{5}{14y} = \frac{10}{21}

18y + 2y - 15y = 20

5y = 20

y = 4

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