\[\left\{ \begin{matrix} 6x - 7y = 40\ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ 5y - 2x = - 8\ \ \ \ \ | \cdot 3 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} 6x - 7y = 40\ \ \ \ \ \ \ \ \ \\ - 6x + 15y = - 24 \\ \end{matrix} + \right.\ \]
\[\left\{ \begin{matrix} 8y = 16\ \ \ \ \ \ \\ x = \frac{5y + 8}{2} \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} y = 2 \\ x = 9 \\ \end{matrix} \right.\ \]
\[Ответ:(9;2)\text{.\ }\]