Tìm \(x,\) biết:

n) \(\left( {2x + \frac{{ - 3}}{4}} \right):\frac{2}{5} = \frac{{ - 10}}{{12}}.\)

a) \(x + \frac{1}{{ - 5}} = \frac{1}{{10}}\)

\(x = \frac{1}{{10}} - \frac{1}{{ - 5}}\)

\(x = \frac{1}{{10}} + \frac{2}{{10}}\)

\(x = \frac{3}{{10}}.\)

m) \(\frac{{ - 15}}{{12}} \cdot \left( {x - \frac{1}{2}} \right) = \frac{5}{{24}}\)

\(x - \frac{1}{2} = \frac{5}{{24}}:\frac{{ - 15}}{{12}}\)

\(x - \frac{1}{2} = \frac{5}{{24}} \cdot \frac{{12}}{{ - 15}}\)

\(x - \frac{1}{2} = \frac{{ - 1}}{6}\)

\(x = \frac{{ - 1}}{6} + \frac{1}{2}\)

\(x = \frac{{ - 1}}{6} + \frac{3}{6}\)

\(x = \frac{2}{6} = \frac{1}{3}.\)