1/5 + 1/2x = 1/3
1/2x=1/3-1/5
1/2x =2/15
x= 2/15 : 1/2
x= 4/15
\(\frac{1}{5}\) + \(\frac{1}{2}\)x = \(\frac{1}{3}\)
\(\frac{1}{2}\)x=\(\frac{1}{3}-\frac{1}{5}\)
\(\frac{1}{2}\)x =\(\frac{2}{15}\)
x= \(\frac{2}{15}:\frac{1}{2}\)
x= \(\frac{4}{15}\)
\(\frac{1}{5}+\frac{1}{2}x=\frac{1}{3}\)
\(\Rightarrow\frac{1}{2}x=\frac{1}{3}-\frac{1}{5}\)
\(\Rightarrow\frac{1}{2}x=\frac{2}{15}\)
\(\Rightarrow x=\frac{2}{15}:\frac{1}{2}\)
\(\Rightarrow x=\frac{4}{15}\)
Vậy \(x=\frac{4}{15}.\)
Chúc bạn học tốt!