Question

x-1/5*x=3/2

Answer 1

\(x-\dfrac{1}{5}x=\dfrac{3}{2}\\ \Rightarrow x\left(1-\dfrac{1}{5}\right)=\dfrac{3}{2}\\ \Rightarrow x.\dfrac{4}{5}=\dfrac{3}{2}\\ \Rightarrow x=\dfrac{3}{2}:\dfrac{4}{5}\\ \Rightarrow x=\dfrac{3}{2}.\dfrac{5}{4}\\ \Rightarrow x=\dfrac{15}{8}\)

Vậy \(x=\dfrac{15}{8}\)

Answer 2

\(\Leftrightarrow0,8x=\dfrac{3}{2}\)

=> x = 1,875

Answer 3

Ta có : \(x-\dfrac{1}{5}x=\dfrac{3}{2}\)

\(\Leftrightarrow\dfrac{4}{5}x=\dfrac{3}{2}\)

\(\Leftrightarrow x=\dfrac{15}{8}\)

Answer 4

\(\dfrac{15}{8}\)

Answer 5

\(x-\dfrac{1}{5}.x=\dfrac{3}{2}\) 

\(x.\left(1-\dfrac{1}{5}\right)=\dfrac{3}{2}\) 

        \(x.\dfrac{4}{5}=\dfrac{3}{2}\) 

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

             \(x=\dfrac{15}{8}\)