Respuesta :
Answer:
You have to solve the parenthesis first
Step-by-step explanation:
So, that would make :
4 + (5 + 6) = (4 + 5) + 6
4 + 11 = 9 + 6
15 = 15
Hope this helps :)
So all you do is add the numbers so 5+6=11 and 4+5=9. Then add 4+11 which is 15 and 9+6 which is 15.