Respuesta :
hekdeude 2po3jhiiehiwehwjkehqroyqedoiueruqeiyriehyrfrehfeirehr5ieorue4hr5i4rfyhr4trk4 rtb54hotr
12a-7b-(4a-21b) distribute
12a-7b-4a+21b combine like terms
8a+14b
This is my best try. That's how I would do it.
12a-7b-4a+21b combine like terms
8a+14b
This is my best try. That's how I would do it.
