\[\boxed{\mathbf{1155\ (1147)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 0,8 \cdot (4x + 5) = - 3,2\]
\[3,2x + 4 = - 3,2\]
\[3,2x = - 7,2\]
\[x = - 2,25\]
\[Ответ:\ - 2,25.\]
\[2) - 2,4 \cdot (7 - 9y) = - 48\]
\[- 16,8 + 21,6y = - 48\]
\[21,6y = - 31,2\]
\[y = - \frac{312}{216} = - 1\frac{96}{216}\]
\[y = - 1\frac{4}{9}\]
\[Ответ:\ - 1\frac{4}{9}.\]