Final answer:
To add the given expressions, we add the numerators and keep the denominator the same. The simplified expression is -x + 8.
Step-by-step explanation:
To add the given expressions, we first need to find a common denominator for both fractions. In this case, the denominators are the same, so we don't need to find a common denominator. We can simply add the numerators.
(2x + 16) + (-3x - 8) = -x + 8
So, the simplified expression is -x + 8.