\[y + 6\frac{9}{16} = - 3\frac{7}{24}\]
\[y + \frac{105}{16} = - \frac{79}{24}\]
\[y = - \frac{79^{\backslash 2}}{24} - \frac{105^{\backslash 3}}{16}\]
\[y = \frac{- 158 - 315}{48}\]
\[y = \frac{- (158 + 315)}{48}\]
\[y = - \frac{473}{48}\]
\[y = - 9\frac{41}{48}\]
\[Ответ:y = - 9\frac{41}{48}\text{.\ }\]