|x - 22| - 33 = -20
=> |x - 22| = -20 + 33
=> |x - 22| = 13
\(\Rightarrow\left[\begin{matrix}x-22=13\\x-22=-13\end{matrix}\right.\)
\(\Rightarrow\left[\begin{matrix}x=13+22\\x=-13+22\end{matrix}\right.\)
\(\Rightarrow\left[\begin{matrix}x=35\\x=9\end{matrix}\right.\)
Giải:
|x - 22| - 33 = -20
=> |x - 22| = -20 + 33
=> |x - 22| = 13
\(\Rightarrow\left[\begin{matrix}x-22=13\\x-22=-13\end{matrix}\right.\Rightarrow\left[\begin{matrix}x=35\\x=9\end{matrix}\right.\)
Vậy \(x\in\left\{35;9\right\}\)
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