Решите уравнение: 13/25-(x+6/25)=4/25.

\[\frac{13}{25} - \left( x + \frac{6}{25} \right) = \frac{4}{25}\]

\[x + \frac{6}{25} = \frac{13}{25} - \frac{4}{25}\]

\[x + \frac{6}{25} = \frac{9}{25}\]

\[x = \frac{9}{25} - \frac{6}{25}\]

\[x = \frac{3}{25}.\]