Final answer:
The equation -5+8=8+(-5) illustrates the Commutative Property of Addition, which states that the order of adding numbers does not change the sum.
Step-by-step explanation:
The property illustrated by the equation -5+8=8+(-5) is the Commutative Property of Addition.
This property states that the order of adding numbers does not change the sum. It can be written as: A + B = B + A.
In the given equation, -5 and 8 can be added in any order, and the sum will still be the same. Therefore, the equation exemplifies the Commutative Property of Addition.