\[\frac{20}{29} - \left( x - \frac{12}{29} \right) = \frac{5}{29}\]
\[x - \frac{12}{29} = \frac{20}{29} - \frac{5}{29}\]
\[x = \frac{15}{29} + \frac{12}{29}\]
\[x = \frac{27}{29}.\]