\(\dfrac{2}{3}x-\dfrac{1}{4}=\dfrac{5}{2}\\ \Rightarrow\dfrac{2}{3}x=\dfrac{5}{2}+\dfrac{1}{4}\\ \Rightarrow\dfrac{2}{3}x=\dfrac{11}{4}\\ \Rightarrow x=\dfrac{11}{4}:\dfrac{2}{3}\\ \Rightarrow x=\dfrac{33}{8}\)
Vậy \(x=\dfrac{33}{8}\)
như này à:\(\dfrac{2}{3}.x-\dfrac{1}{4}=\dfrac{5}{2}\)
\(\dfrac{2}{3}x-\dfrac{1}{4}=\dfrac{5}{2}\)
\(\dfrac{2}{3}x=\dfrac{5}{2}+\dfrac{1}{4}\)
\(\dfrac{2}{3}x=\dfrac{11}{4}\)
\(x=\dfrac{11}{4}:\dfrac{2}{3}\)
\(x=\dfrac{33}{8}\)
