Решение:
\[ x = \frac{1}{2} - \frac{1}{8} \]
\[ x = \frac{1 \times 4}{2 \times 4} - \frac{1}{8} \]
\[ x = \frac{4}{8} - \frac{1}{8} \]
\[ x = \frac{4-1}{8} = \frac{3}{8} \]
Ответ: x = \(\frac{3}{8}\)