\(\dfrac{1}{2}.x-\dfrac{1}{4}=\dfrac{-1}{2}\)
\(\dfrac{2x}{4}-\dfrac{1}{4}=\dfrac{-2}{4}\)
\(=>2x-1=-2\)
\(=>2x=-1\)
\(=>x=\dfrac{-1}{2}\)
\(\dfrac{1}{2}x-\dfrac{1}{4}=-\dfrac{1}{2}\)
\(\dfrac{1}{2}x=-\dfrac{1}{2}+\dfrac{1}{4}\)
\(\dfrac{1}{2}x=-\dfrac{2}{4}+\dfrac{1}{4}\)
\(\dfrac{1}{2}x=-\dfrac{1}{4}\)
\(x=-\dfrac{1}{4}:\dfrac{1}{2}\)
\(x=-\dfrac{1}{2}\)
1/2x- 1/4= -1/2
1/2x= -1/2+ 1/4
1/2x= -1/4
x= -1/4 : 1/2
x=-1/2(hết)
`1/2 . x -1/4 =-1/2`
`=> 1/2 . x= -1/2 +1/4`
`=> 1/2 . x=-2/4 +1/4`
`=> 1/2 . x= -1/4`
`=> x=-1/4 :1/2`
`=> x= -1/4 xx 2`
`=>x=-2/4`
`=>x=-1/2`