\[\left\{ \begin{matrix} y = 3x\ \ \ \ \ \ \ \ \ \ \ \\ y = - 2x - 5 \\ \end{matrix} \right.\ \]
\[3x = - 2x - 5\]
\[5x = - 5\]
\[x = - 1\]
\[y = 3x\]
\[x = 3 \bullet ( - 1)\]
\[y = - 3\]
\[Ответ:( - 1;\ - 3).\]