\(\Leftrightarrow\left\{{}\begin{matrix}\dfrac{4}{x+1}=4\\\dfrac{1}{x+1}-\dfrac{2}{y-1}=-1\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x+1=1\\1-\dfrac{2}{y-1}=-1\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0\\y-2=1\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0\\y=3\end{matrix}\right.\)