Question

Use the Associative Property of Addition to write an expression equivalent to (n + 2) + 7. Which expression is equivalent to (n + 2) + 7 by the Associative Property of Addition? O A. (n+7)+2 OB. n +(2+7) OC. 7+ (n +2) OD. n +2 +7 Click to select your answer. Save for Later

Answer 1

The correct answer is OB.

Explanation:

Let us recall the Associative Property of Addition: given three real numbers
`a`,
`b` and
`c` the following equality holds:

`(a+b) + c = a+(b+c)`.

Let us remark that the Associative Property of Addition tells us that we can perform the sums in any order. So,

`(n+2)+7 = n+(2+7)`.

In the other options there was used the Commutative Property of Addition.