Решите уравнение: 18/23-(7/23+x)=5/23.

\[\frac{18}{23} - \left( \frac{7}{23} + x \right) = \frac{5}{23}\]

\[\frac{7}{23} + x = \frac{18}{23} - \frac{5}{23}\]

\[\frac{7}{23} + x = \frac{13}{23}\]

\[x = \frac{23}{23} - \frac{7}{23}\]

\[x = \frac{16}{23}.\]