\(\frac{3}{2}x-\left(\frac{4}{5}-2\text{x}\right)=\frac{13}{10}\)
\(\Leftrightarrow\frac{3}{2}x-\frac{4}{5}+2\text{x}=\frac{13}{10}\)
\(\Leftrightarrow\frac{3}{2}x+2\text{x}=\frac{13}{10}+\frac{4}{5}\)
\(\Leftrightarrow\frac{3\text{x}+4\text{x}}{2}=\frac{13}{10}+\frac{8}{10}\)
\(\Leftrightarrow\frac{7}{2}x=\frac{21}{10}\)
\(\Leftrightarrow x=\frac{21}{10}\div\frac{7}{2}=\frac{21}{10}\cdot\frac{2}{7}=\frac{3}{5}\)
Vậy x = \(\frac{3}{5}\)
\(\frac{3}{2}x-\left(\frac{4}{5}-2x\right)=\frac{13}{10}\)
\(\frac{3}{2}x-\frac{4}{5}+2x=\frac{13}{10}\)
\(\frac{3}{2}x+2x=\frac{13}{10}+\frac{4}{5}\)
\(x\left(\frac{3}{2}+\frac{4}{2}\right)=\frac{13}{10}+\frac{8}{10}\)
\(\frac{7}{2}x=\frac{21}{10}\)
\(x=\frac{21}{10}:\frac{7}{2}\)
\(x=\frac{21}{10}.\frac{2}{7}\)
\(x=\frac{42}{70}\)
x=\(\frac{3}{5}\)
Học tốt!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
