Final answer:
The property shown in the equation is the associative property of addition. This property states that the grouping of the numbers being added does not affect the sum.
Step-by-step explanation:
The property shown in the equation is the associative property of addition. This property states that the grouping of the numbers being added does not affect the sum. In other words, you can regroup the numbers being added without changing the final result.
In the given equation, both sides of the equation have the same sum after grouping the numbers in different ways. Therefore, it satisfies the associative property of addition.