To solve for \( h(3) \) given the function \( h(x) = -x - 4 \), we can substitute \( x = 3 \) into the function.
\[ h(3) = -3 - 4 \]
Calculating this gives:
\[ h(3) = -7 \]
Next, we need to find \( h(h(3)) \), which is \( h(-7) \).
Now substitute \( x = -7 \) into the original function:
\[ h(-7) = -(-7) - 4 \]
Calculating this gives:
\[ h(-7) = 7 - 4 = 3 \]
Therefore, the final result is:
\[ h(h(3)) = 3 \]
So, \( h(h(3)) = 3 \).