Introductory Algebra for College Students (7th Edition)

The expression evaluates to $6$.
The first thing we need to simplify is to change the double negative to a positive. When we subtract a negative number, that means we add that number. $$-8 - 2 + 5 + 11$$ According to order of operations, we add or subtract the expression from left to right. We first subtract $2$ from $-8$ to get $-10$: $$-10 + 5 + 11$$ Now, we add $-10$ to $5$: $$-5 + 11$$ Finally, we add $11$ to $-5$: The expression evaluates to $6$.