3) \(3x = \frac{2}{9}\)

Решение:

1. \(x = \frac{2}{9} : 3\)
2. \(x = \frac{2}{9} \cdot \frac{1}{3}\)
3. \(x = \frac{2 · 1}{9 · 3}\)
4. \(x = \frac{2}{27}\)

Ответ: \(x = \frac{2}{27}\)