a)\(\left|4-2x\right|=6\\ \Rightarrow\left[{}\begin{matrix}4-2x=6\\2-2x=-6\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-1\\x=4\end{matrix}\right.\)
Vậy...
d)\(-12\left|x\right|=-24\\ \Leftrightarrow\left|x\right|=2\\ \Rightarrow\left[{}\begin{matrix}x=2\\x=-2\end{matrix}\right.\)
Vậy...
e)\(\left|x\right|\left(-3\right)=-9 \\ \Leftrightarrow\left|x\right|=3\\ \Rightarrow\left[{}\begin{matrix}x=3\\x=-3\end{matrix}\right.\)
Vậy...