simplify. - 11a + 9 + 11a

Explanation:

Step1: Combine like - terms

$-11a+11a + 9$

Step2: Calculate the sum of $-11a$ and $11a$

$(-11 + 11)a+9$ $0a+9$

Step3: Simplify the expression

$0 + 9=9$

Answer:

$9$