|2x - 5| + |30| = 41
=> |2x - 5| + 30 = 41
=> |2x - 5| = 41 - 30 = 11
\(\Rightarrow\left[{}\begin{matrix}2x-5=11\\2x-5=-11\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}2x=11+5=16\\2x=-11+5=-6\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}x=16:2=8\\x=-6:2=-3\end{matrix}\right.\)
\(\left|2x-5\right|+\left|30\right|=41\) hay \(\left|2x-5\right|+30=41\)
⇒ \(\left|2x-5\right|=\)41-30=11
\(\Rightarrow\left[{}\begin{matrix}2x-5=11\\2x-5=-11\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}2x=16\\2x=-6\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=8\\x-3\end{matrix}\right.\)
