§ Задание 85
\[\boxed{\mathbf{3.}\mathbf{85}}\]

\[\textbf{а)}\ (96\ :a)\ :6\]
\[\textbf{б)}\ 18x\ :9\]
\[\textbf{в)}\ (a - 1)\ :5\]
\[\textbf{г)}\ (10 + x)\ :a\]
\[\boxed{\mathbf{3.}\mathbf{85}}\]

\[\textbf{а)}\ (96\ :a)\ :6\]
\[\textbf{б)}\ 18x\ :9\]
\[\textbf{в)}\ (a - 1)\ :5\]
\[\textbf{г)}\ (10 + x)\ :a\]