Tìm số hữu tỉ x, biết:

 a)\(x - \frac{3}{2} = \frac{{11}}{4}\)

 \(x = \frac{{11}}{4} + \frac{3}{2}\)

 \(x = \frac{{11}}{4} + \frac{6}{4}\)

 \(x = \frac{{17}}{4}\)

 b)\[\frac{3}{2}x + \frac{{11}}{4} = \frac{9}{8}\]

\[\frac{3}{2}x = \frac{9}{8} - \frac{{11}}{4}\]

 \[\frac{3}{2}x = \frac{9}{8} - \frac{{22}}{8}\]

\[\frac{3}{2}x = \frac{{ - 13}}{8}\]

 \[x = \frac{{ - 13}}{8}:\frac{3}{2}\]

 \[x = \frac{{ - 13}}{{12}}\]