Question

|x - 0,5| = 4 giải hộ mình với ạ

 

 

Answer 1

|x-0,5|=4

=>\(\left[{}\begin{matrix}x-0,5=4\\x-0,5=-4\end{matrix}\right.\)

=>\(\left[{}\begin{matrix}x=4,5\\x=-3,5\end{matrix}\right.\)

Answer 2

\(\left|x-0,5\right|=4\)
\(\Rightarrow\left[{}\begin{matrix}x-0,5=4\\x-0,5=-4\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}x=4,5\\x=-3,5\end{matrix}\right.\)
Vậy \(x\in\left\{4,5;-3,5\right\}\)
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