No, \(-\frac{3}{-7}\) is not equivalent to \(-\frac{3}{7}\).
When you divide a negative number by a negative number, the result is positive. So, \(-\frac{3}{-7}\) simplifies to \(\frac{3}{7}\).
On the other hand, \(-\frac{3}{7}\) is negative.
Therefore:
\[ -\frac{3}{-7} = \frac{3}{7} \quad \text{and} \quad -\frac{3}{7} = -\frac{3}{7} \]
These two fractions are not equivalent.