Final answer:The property illustrated is the commutative property of addition.Explanation:The property illustrated in this equation is thecommutative property of addition. This property states that the order in which numbers are added does not affect the sum. In this equation, the numbers 4, 3, and 9 are being added, and they can be rearranged in any order without changing the result.For example, in the equation 4 + 3 + 9 = 3 + 4 + 9, we can swap the places of 4 and 3 to get 3 + 4 + 9 = 4 + 3 + 9, and the sum remains the same.The commutative property of addition is a fundamental property of addition and is often used when rearranging terms or simplifying expressions.Learn more about Commutative property of additionbrainly.com/question/24851890#SPJ2...

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