Решите уравнение: 1/7*x=-5/14.

\[\frac{1}{7}x = - \frac{5}{14}\]

\[x = - \frac{5 \cdot 7}{14 \cdot 1}\]

\[x = - \frac{5}{2}\]

\[x = - 2,5\]

\[Ответ:\ x = - 2,5.\]