Final answer:
To simplify the expression, combine like terms by adding the constants and combining the 'a' terms. The simplified expression is 27a + 119.
Step-by-step explanation:
To simplify the expression (-8 + 10a) + 9 - 11a + 8 + 19a + 1 + 19a + 1 + 100, we need to combine like terms. Like terms have the same variable raised to the same power.
First, let's combine the constants: 9 + 8 + 1 + 1 + 100 = 119. Now, let's combine the terms with 'a': -11a + 19a + 19a = 27a. Therefore, the simplified expression is 27a + 119.