\(\left|-5\right|-\left|6-x\right|:3=-12\)
=> \(5-\left|6-x\right|:3=-12\)
=> \(\left|6-x\right|:3=5-\left(-12\right)=5+12=17\)
=> \(\left|6-x\right|=17.3=51\)
=> \(\left[{}\begin{matrix}6-x=51\\6-x=-51\end{matrix}\right.\)
=> \(\left[{}\begin{matrix}x=6-51=-45\\x=6-\left(-51\right)=6+51=57\end{matrix}\right.\)
Vậy: x = -45 hoặc x = 57
\(|-5|-|6-x|:3=-12\)
=> 5 -\(|6-x|\) = -4
=> \(|6-x|\) = 9
=> \(\left\{{}\begin{matrix}6-x=9\\6-x=-9\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=-3\\x=15\end{matrix}\right.\)
Vậy : . . . .
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