What property is for 9 + n = 9 + n ?

Answer 1

http://www.mathsisfun.com/associative-commutative-distributive.html

Answer 2

commutativity (i.e. can be switched around, Fr. commutateur=switch)

Answer 3

Commutative Property of Addition ?

I did read it Im just making sure if I'm correct.

Answer 4

Is that the right answer to the question?

Answer 5

Yes. MathMate told you the answer 10 minutes ago.

Answer 6

Yes, you answer is correct.

Your answer is more specific than mine. It restricts the operation to addition, while commutativity applies also to some other operators such as multiplication.

Answer 7

Ok

Thank You!!!
PS: I'll soon post math homework corrects (just 4 questions). I want to make sure if there any grammar mistakes and correct.