Question

Which property states that a + (b + c) = (a + b) + c?

Answer 1

you should find it easily on this list
http://www.capitan.k12.nm.us/teachers/shearerk/basic_rules_of_algebra.htm

Answer 2

all rules you should know very well^

Answer 3

thank you.. Thats the site I've been looking for

Answer 4

Do you know what the word "associate" means? If you've ever heard anyone say "I don't associate with..." then you probably do. To associate with is to be paired with, to be connected to, to hang out with. If you look at that equation, it is exactly the same except for which variable b is hanging out with. On the second side, b is associating with c instead of a.