Answer
$n=-1$
Work Step by Step
$\begin{align*}
n-6+6&=-7+6 &\text{Add 6 to each side of the equation.}\\
n&=-1 &\text{Simplify}.
\end{align*}$
Check if the solution is correct by substituting $-1$ to the variable in the original equation:
$\begin{align*}
n-6&=-7\\
-1-6&\stackrel{?}{=}-7\\
-7&\stackrel{\checkmark}{=}-7
\end{align*}$
Thus, the solution is $n=-1$.