Решите уравнение: (2+x)/5=4/9.

\[\frac{2 + x}{5} = \frac{4}{9}\]

\[2 + x = \frac{4 \cdot 5}{9}\]

\[x = \frac{20}{9} - 2 = \frac{20 - 18}{2}\]

\[x = \frac{2}{9}.\]