#### Answer

$-37$

#### Work Step by Step

We start with the given expression: $-76-(-39)$
First, we will convert this into an addition problem: $-76+39$
We can find the sum of a positive and a negative integer by subtracting the smaller absolute value from the larger absolute value and giving the result the sign of the original number that has the larger absolute value.
Since $|-76|>|39|$, we can subtract $39$ from $76$, giving us $37$. Since the larger absolute value was originally negative, the result is negative: $-37$