Answer
Commutative Property
Work Step by Step
The rule for this property is $a+b=b+a$.
Plug in $3$ as $a$ and $7$ as $b$ and you will see the commutative property being used.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.