\(\Leftrightarrow\left\{{}\begin{matrix}3x-11\ge0\\x-3=\left(3x-11\right)^2\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}x\ge\frac{11}{3}\\9x^2-67x+124=0\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}x\ge\frac{11}{3}\\\left[{}\begin{matrix}x=4\\x=\frac{31}{9}\left(l\right)\end{matrix}\right.\end{matrix}\right.\) \(\Rightarrow x=4\)