Answer :
2n + 3x + 9n = 2n + 9n + 3x
3x + 11n = 11n + 3x
the commutative property states : a + b = b + a...so basically, it does not matter which order the numbers are in, they will have the same answer.
3x + 11n = 11n + 3x
the commutative property states : a + b = b + a...so basically, it does not matter which order the numbers are in, they will have the same answer.