\[\left\{ \begin{matrix}
2x - 5y + 33 = 0\ \ | \cdot 3 \\
3x - 8y + 52 = 0\ | \cdot 2 \\
\end{matrix} \right.\ \text{\ \ \ \ \ }\]
\[\left\{ \begin{matrix}
6x - 15y + 99 = 0\ \ \\
6x - 16y + 104 = 0 \\
\end{matrix} \right.\ \ \ ( - )\ \ \]
\[\ \left\{ \begin{matrix}
y = 5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \\
x = \frac{5y - 33}{2} \\
\end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix}
y = 5\ \ \ \ \\
x = - 4 \\
\end{matrix} \right.\ \]
\[Ответ:( - 4;5).\]