в) \frac{1}{2}x - \frac{1}{3} = \frac{1}{6};

в) \frac{1}{2}x - \frac{1}{3} = \frac{1}{6};

1. \frac{1}{2}x - \frac{1}{3} = \frac{1}{6};
2. \frac{1}{2}x = \frac{1}{6} + \frac{1}{3};
3. \frac{1}{2}x = \frac{1}{6} + \frac{1 \cdot 2}{3 \cdot 2};
4. \frac{1}{2}x = \frac{1}{6} + \frac{2}{6};
5. \frac{1}{2}x = \frac{3}{6};
6. \frac{1}{2}x = \frac{1}{2};
7. x = \frac{1}{2} : \frac{1}{2};
8. x = 1.

Ответ: 1