The problem asks us to find the missing number in the equation $? - 5 = -12$.

1. Problem Description

The problem asks us to find the missing number in the equation $? - 5 = -12$.

2. Solution Steps

Let $x$ be the missing number. Then we have the equation:

$x - 5 = -12$

To solve for $x$, we need to isolate $x$ on one side of the equation. We can do this by adding 5 to both sides of the equation:

$x - 5 + 5 = -12 + 5$

$x = -7$

3. Final Answer

The missing number is -7.