Verified Answer :

ajordan26

This is the commutative property of multiplication. Commutative property has to do with order. Whereas the equation begins with 5+ac, its equivalent reads 5+ca. The order of the variables has changed.

apologiabiology

reiprocal property is also known as the commutiave property which staes
ab=ba so we have
5+ac=5+ca
we can ignore the 5 since it was no changed
ac=ca
very close to
ab=ba
aka commutative property

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