\[\boxed{\text{1049\ (1049).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[Ответ:(8;1).\]
\[\left\{ \begin{matrix} x = 1,2\ \ \ \ \ \ \ \ \ \ \ \ \\ y = \frac{12 - 10x}{2} \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ }\left\{ \begin{matrix} x = 1,2 \\ y = 0\ \ \ \\ \end{matrix} \right.\ \]
\[Ответ:(1,2;0).\]
\[\left\{ \begin{matrix} y = - 2 \\ x = \frac{1 + 2y}{3} \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ \ \ }\left\{ \begin{matrix} y = - 2 \\ x = - 1 \\ \end{matrix} \right.\ \]
\[Ответ:( - 1;\ - 2).\]
\[\left\{ \begin{matrix} y = - 1 \\ x = \frac{17 - 3}{2} \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ \ \ \ }\left\{ \begin{matrix} y = - 1 \\ x = 7 \\ \end{matrix} \right.\ \]
\[Ответ:(7;\ - 1).\]
\[Ответ:(4;\ - 1).\]
\[\left\{ \begin{matrix} y = - 2 \\ x = \frac{8 + 10}{3} \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ \ }\left\{ \begin{matrix} y = - 2 \\ x = 6\ \ \ \ \\ \end{matrix} \right.\ \]
\[Ответ:(6;\ - 2).\]
\[Ответ:(2;\ - 2).\]
\[Ответ:(5;6)\text{.\ }\]