| x - 2| =19
=>\(\left[ \begin{array}{l}x-2=19\\x-2=-19\end{array} \right.\)
=>\(\left[ \begin{array}{l}x=19+2\\x=-19+2\end{array} \right.\)
=>\(\left[ \begin{array}{l}x=21\\x=-17\end{array} \right.\)
Vậy \(\left[ \begin{array}{l}x=21\\x=-17\end{array} \right.\)