Respuesta :

growl
Use distributive property to remove the (). So you get 5+ n+ 15 -2. Rearrange the terms into a easier format: 15 + 5 - 2 + n. Combine like terms and you get 18+n.
DAH539

5 + n + (15 - 2)   simplified is

n + 18

hope this helps. ;)