20) \(2x-\dfrac{2}{3}-7x=\dfrac{3}{2}-1\)
22) \(-\dfrac{5}{3}x=\dfrac{7}{10}x+\dfrac{5}{6}\)
23) \(2x-\dfrac{1}{4}=\dfrac{5}{6}-\dfrac{1}{2}x\)
24) \(\dfrac{5}{6}+3x=\dfrac{2}{3}-\dfrac{1}{2}x\)
25) \(3x-\dfrac{5}{3}=x+\dfrac{1}{4}\)
26) \(3.\left(x-\dfrac{1}{2}\right)-3\left(x-\dfrac{1}{3}\right)=x\)
27) \(\left(x+2\right)-4\left(x-\dfrac{1}{4}\right)=\dfrac{1}{2}x\)
\(20,\)
\(2x-\dfrac{2}{3}-7x=\dfrac{3}{2}-1\)
\(=>-5x=\dfrac{7}{6}\)
\(=>x=\dfrac{-7}{30}\)
\(22,\)
\(\dfrac{-5}{3}x=\dfrac{7}{10}x+\dfrac{5}{6}\)
\(=>\dfrac{71}{30}x=\dfrac{5}{6}\)
\(=>x=\dfrac{25}{71}\)
`23,`
\(2x-\dfrac{1}{4}=\dfrac{5}{6}-\dfrac{1}{2}x\)
\(=>\dfrac{5}{2}x=\dfrac{13}{12}\)
\(=>x=\dfrac{13}{30}\)
`24,`
\(\dfrac{5}{6}+3x=\dfrac{2}{3}-\dfrac{1}{2}x\)
\(=>\dfrac{7}{2}x=\dfrac{-1}{6}\)
\(=>x=\dfrac{-1}{21}\)
`25,`
\(3x-\dfrac{5}{3}=x+\dfrac{1}{4}\)
\(=>2x=\dfrac{23}{12}\)
\(=>x=\dfrac{23}{24}\)
`26,`
\(3\left(x-\dfrac{1}{2}\right)-3\left(x-\dfrac{1}{3}\right)=x\)
\(=>x=3.\dfrac{-1}{6}=>x=\dfrac{-1}{2}\)
`27,`
\(\left(x+2\right)-4\left(x-\dfrac{1}{4}\right)=\dfrac{1}{2}x\)
\(=>-3x+3=\dfrac{1}{2}x\)
\(=>\dfrac{7}{2}x=3\)
\(=>x=\dfrac{6}{7}\)