\[\left\{ \begin{matrix} x + y = 4\ \ \ \ \ \ \\ x - 2y = - 2 \\ \end{matrix} \right.\ \Longrightarrow \left\{ \begin{matrix} y = 4 - x\ \ \\ 2y = x + 2 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} y = 4 - x\ \ \ \ \ \ \\ y = 0,5x + 1 \\ \end{matrix} \right.\ \]
\[Ответ:(2;2).\]