\(\left|x-999\right|+\left|1998-2x\right|=0\)
Vì \(\left|x\right|\ge0\)
mà \(\left|x-999\right|+\left|1998-2x\right|=0\)
\(=>\left[\begin{matrix}x-999=0\\1998-2x=0\end{matrix}\right.\)
=> \(\left[\begin{matrix}x=0+999\\2x=1998\end{matrix}\right.\)
\(=>\left[\begin{matrix}x=999\\x=999\end{matrix}\right.\)
Vậy x = 999