\(\left[{}\begin{matrix}x-12=24\\x-12=-24\end{matrix}\right.\)\(\left[{}\begin{matrix}x=36\\x=-12\end{matrix}\right.\)
\(|x-12|=24\)
\(\Rightarrow\left[{}\begin{matrix}x-12=24\\x-12=-24\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}x=24+12\\x=-24+12\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}x=36\\x=-12\end{matrix}\right.\)
Vậy \(x=36\) hoặc \(x=-12\)