Question

Tìm x :

\(x-\frac{2}{5}=\frac{10}{5}\) ; \(\frac{10}{5}-x=\frac{2}{5}\)

ai k cho công chúa xinh xắn , mik k lại

Answer 1

\(x-\frac{2}{5}=\frac{10}{5}\)

\(x=\frac{10}{5}+\frac{2}{5}\)

\(x=\frac{12}{5}\)

\(\frac{10}{5}-x=\frac{2}{5}\)

\(x=\frac{10}{5}-\frac{2}{5}\)

\(x=\frac{8}{5}\)

Answer 2

\(x-\frac{2}{5}=\frac{10}{5}\)

           \(x=\frac{10}{5}+\frac{2}{5}\) 

          \(x=\frac{12}{5}\)

\(\frac{10}{5}-x=\frac{2}{5}\)

              \(x=\frac{10}{5}-\frac{2}{5}\)

               \(x=\frac{8}{5}\)

Answer 3

\(x-\frac{2}{5}=\frac{10}{5}\)
\(x=\frac{10}{5}+\frac{2}{5}\)         
\(x=\frac{12}{5}\)    
 

\(\frac{10}{5}-x=\frac{2}{5}\)
\(x=\frac{10}{5}-\frac{2}{5}\)
\(x=\frac{8}{5}\)