`|x| = |-3/2|`
`<=> |x| = 3/2`
`<=> x= ` \(\pm\dfrac{3}{2}\)
\(\left|x\right|=\left|-\dfrac{3}{2}\right|\)
`=>` \(\left|x\right|=\dfrac{3}{2}\)
`=> x = 3/2`
hoặc `x = -3/2`
\(\left|x\right|=\left|-\dfrac{3}{2}\right|\)
\(\left|x\right|=\dfrac{3}{2}\)
\(x=\pm\dfrac{3}{2}\)