Решите уравнение: 3 3/5:x=9/35.

\[3\frac{3}{5}\ :x = \frac{9}{35}\]

\[x = 3\frac{3}{5}\ :\frac{9}{35} = \frac{18}{5} \cdot \frac{35}{9} = \frac{18 \cdot 35}{5 \cdot 9}\]

\[x = 14.\]