\[\left\{ \begin{matrix} x = \frac{6y - 23}{y - 4}\text{\ \ } \\ x^{2} + y^{2} = 34 \\ \end{matrix} \right.\ \]
\[x = \frac{6y - 24 + 1}{y - 4} = 6 + \frac{1}{y - 4}\]
\[y - 4 = 1:\]
\[y = 5 \Longrightarrow x = 7;\]
\[y - 4 = - 1:\]
\[y = 3 \Longrightarrow x = 5.\]
\[Подставим\ во\ второе\ уравнение:\]
\[1)\ (7;5):\]
\[49 + 25 \neq 34.\]
\[2)\ (5;3):\]
\[25 + 9 = 34.\]
\[Ответ:(5;3).\]