Решите систему уравнений: 3x=4; 6x-y=11.

\[\left\{ \begin{matrix} 3x = 4\ \ \ \ \ \ \ \ \ \ \\ 6x - y = 11 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ }\]

\[\left\{ \begin{matrix} x = \frac{4}{3}\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ } \\ 6 \cdot \frac{4}{3} - 11 = y \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ }\]

\[\left\{ \begin{matrix} x = 1\frac{1}{3}\text{\ \ \ \ \ \ \ } \\ 8 - 11 = y \\ \end{matrix} \right.\ \text{\ \ \ \ }\]

\[\left\{ \begin{matrix} x = 1\frac{1}{3} \\ y = - 3 \\ \end{matrix} \right.\ \]

\[Ответ:\left( 1\frac{1}{3}; - 3 \right)\text{.\ }\]