Final answer:
To complete the equation and make it true, apply the commutative property of addition.
Step-by-step explanation:
To complete the equation and make it true, we need to apply the commutative property of addition, which states that changing the order of the addends does not change the sum. Therefore, we can rearrange the equation as:
(4200 + 75) + 5 = 4280 + (75 + 5)
Next, we can perform the addition operations on both sides:
4275 + 5 = 4280 + 80
Simplifying further:
4280 = 4280
Since both sides of the equation are equal, the equation is true.
Learn more about Commutative property of addition