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Question

anonymous · Answer

Equality? Any more background to where the question came from? Otherwise something along the lines of equality or different ways of saying the same thing.

chaise · Answer

They're all identity properties. If the answer equals 1 in mutliplication, you have an identity element, if the answer equals to 0 in addition you have an identity element.

Addition:
a+e = 0

Multiplication:
a x e = 1

chaise · Answer

I hope this helped.

radar · Answer

22.  Additive inverse property
24. Associative property of addition
26. Multiplication inverse property.