ГДЗ по алгебре 7 класс Макарычев Задание 195

\[\boxed{\text{195\ (195).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[\textbf{а)}\ 6 \cdot (y - 1) = 9,4 - 1,7y\]

\[6y - 6 + 1,7y = 9,4\]

\[7,7y = 9,4 + 6\]

\[7,7y = 15,4\]

\[y = 15,4\ :7,7\]

\[y = 154\ :77\]

\[y = 2\]

\[Ответ:y = 2.\]

\[\textbf{б)}\ 3 \cdot (2,4 - 1,1m) = 2,7m + 3,2\]

\[7,2 - 3,3m - 2,7m = 3,2\]

\[- 6m = 3,2 - 7,2\]

\[- 6m = - 4\]

\[m = - 4\ :( - 6)\]

\[m = \frac{4}{6}\]

\[m = \frac{2}{3}\]

\[Ответ:m = \frac{2}{3}.\]