Ta có:\(\frac{1}{2}x+\frac{1}{5}=\frac{2}{3}x-\frac{1}{4}\)
=>\(\frac{1}{5}+\frac{1}{4}=\frac{2}{3}x-\frac{1}{2}x\)
=>\(\frac{9}{20}=\left(\frac{2}{3}-\frac{1}{2}\right)x\)
=>\(\frac{9}{20}=\frac{1}{6}x\)
=>\(x=\frac{9}{20}:\frac{1}{6}=\frac{9}{20}.\frac{6}{1}=\frac{54}{20}=2,7\)
Vậy x=2,7