Respuesta :

LNO
Collect like terms
3g+11g-9-21
Add the like terms up
14g-30
if u have to simplify further, u have
2(7g-15)
Davionna11
The answer is -4g because you have to do 3g-9 you get 6g and then you do 6g+11g and you get 17g and then you subtract that from 21 and you will get -4g. Hoped this helped.