\[\left\{ \begin{matrix}
x - 2y = 6 \\
x + y = 4\ \ \ \ \\
\end{matrix} \right.\ \text{\ \ \ \ \ }\]
\[\left\{ \begin{matrix}
2y = x - 6 \\
y = 4 - x\ \ \\
\end{matrix} \right.\ \text{\ \ \ \ \ }\]
\[\left\{ \begin{matrix}
y = \frac{1}{2}x - 3\ \ \ (1) \\
y = 4 - x\ \ \ \ \ \ (2) \\
\end{matrix} \right.\ \]
\[(1)\ y = 0,5x - 3\]
| \[x\] | \[0\] | \[2\] |
|---|---|---|
| \[y\] | \[- 3\] | \[- 2\] |
\[(2)\ y = 4 - x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[4\] | \[3\] |

\[(4,7;\ - 0,7).\]