Use the Associative Property of Addition to rewrite the expression (7+8)+6
as an equivalent expression.
The Associative Property of Addition states that when adding three or more numbers, the way in which they are grouped does not affect the sum. This means that you can group the numbers differently and still get the same result.
Using the Associative Property of Addition, the expression (7+8)+6 can be rewritten by re-grouping the numbers without changing their order:
(7+8)+6 = 7+(8+6)
In this new grouping, 8 and 6 are added together first, and then 7 is added to their sum. The sum remains the same; only the grouping has changed.