/x-2011/ = 2012
\(\Rightarrow\left[{}\begin{matrix}x-2011=2012\\x-2011=-2012\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}x=2012+2011\\x=\left(-2012\right)+2011\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}x=4023\\x=-1\end{matrix}\right.\)
Vậy x \(\in\left\{4023;-1\right\}\)