To subtract the expressions \((-6v - 7)\) and \((6v - 7)\), we can rewrite the expression as follows:
\[ (-6v - 7) - (6v - 7) \]
Distributing the negative sign across the second expression:
\[ -6v - 7 - 6v + 7 \]
Now, we can combine like terms:
- For the \(v\) terms: \(-6v - 6v = -12v\)
- For the constant terms: \(-7 + 7 = 0\)
Putting it all together, we get:
\[ -12v + 0 = -12v \]
Thus, the final result is:
\[ \boxed{-12v} \]