Respuesta :
Answer:
11a+8
Step-by-step explanation:
Combine like terms, so you add 2a and 9a to get 11a, then add 1 and 7 to get 8
Answer:
11a+8
Step-by-step explanation:
Combine like terms, so you add 2a and 9a to get 11a, then add 1 and 7 to get 8