Question

tìm X

4/7 -x =1/3

Answer 1

\(\frac{4}{7-x}=\frac{1}{3}\)

\(\Rightarrow3.4=1\left(7-x\right)\)

\(\Rightarrow7-x=12\)

\(\Rightarrow x=-5\)

Answer 2

x= 4/7-1/3

x= 12/21-7/21

x=5/21

Vậy x =5/21

Answer 3

\(\frac{4}{7}-x=\frac{1}{3}\)

        \(x=\frac{4}{7}-\frac{1}{3}\)

        \(x=\frac{5}{21}\)

 ^...^ ^_^