## Introductory Algebra for College Students (7th Edition)

$$-8 - (-13) = 5$$
When we add two numbers with differing signs, we subtract the smaller absolute value from the greater absolute value first: $$|13| - |8| = 5$$ Then, we use the sign of the number with the greater absolute value for the sign of the sum. Therefore, $$-8 - (-13) = 5$$