Question

tìm x biết :  \(\frac{2}{3}.x-x.\frac{2}{5}=\frac{_{-1}}{3}\)

Answer 1

x.(2/3-2/5)=-1/3

x.4/15=-1/3

x=-1/3:4/15

x=-5/4

Answer 2

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

\(x.\frac{4}{15}=\frac{-1}{3}\)

\(x=\frac{-1}{3}+\frac{4}{15}\)

\(x=\frac{-1}{15}\)