| x : ( -5/6 ) – 3/4 | = 2 ( giải cụ thể từng bước )

\(\left| {x : \dfrac{-5}{6} -\dfrac{ 3}{4}}\right | = 2\)

TH1: \(x : \dfrac{-5}{6} -\dfrac{ 3}{4} = 2\)

\(\Rightarrow x : \dfrac{-5}{6} =2+\dfrac{3}{4}\)

\(\Rightarrow x : \dfrac{-5}{6} =\dfrac{11}{4}\)

\(\Rightarrow x=\dfrac{11}{4}.\dfrac{-5}{6}\)

\(\Rightarrow x=\dfrac{-55}{24}\) ™

TH2: \(x : \dfrac{-5}{6} -\dfrac{ 3}{4} = -2\)

\(\Rightarrow x : \dfrac{-5}{6} =-2+\dfrac{3}{4}\)

\(\Rightarrow x : \dfrac{-5}{6} =\dfrac{-5}{4}\)

\(\Rightarrow x=\dfrac{-5}{4}.\dfrac{-5}{6}\)

\(\Rightarrow x=\dfrac{25}{24}\) ™.