Question

Answer 1

\(2\left|x\right|-\dfrac{1}{2}=\dfrac{3}{4}\\ 2\left|x\right|=\dfrac{3}{4}+\dfrac{1}{2}=\dfrac{5}{4}\\ \left|x\right|=\dfrac{5}{4}\div2\)

\(\left|x\right|=\dfrac{5}{10}\)

Ta có 2 trường hợp:

\(x=\left\{{}\begin{matrix}\dfrac{5}{10}\\-\dfrac{5}{10}\end{matrix}\right.\)

Vậy \(x\in\left\{\dfrac{5}{10};-\dfrac{5}{10}\right\}\)

 

Answer 2

ơ nó bị lỗi ... ;-;