\[\left( x + \frac{5}{8} \right) - \frac{3}{4} = \frac{5}{12} - \frac{3}{8}\]
\[x + \frac{5}{8} = \frac{5}{12} - \frac{3}{8} + \frac{3}{4}\]
\[x = \frac{5}{12} - \frac{3}{8} + \frac{3^{\backslash 3}}{4} - \frac{5}{8}\]
\[x = \frac{5}{12} + \frac{9}{12} - \frac{8}{8}\]
\[x = \frac{14}{12} - 1 = \frac{7}{6} - 1\]
\[x = 1\frac{1}{6} - 1\]
\[x = \frac{1}{6}.\]