math
posted by casey .
Rules:Determine wether the two expressions are equivalent.If so,tell what property is applied.If not, explain why.
1)18 x 1 and 18
2)7 + 0 and 7
3)0 + 12 and 0
can someone please explain to me why these expressions are not equivalent. I know that these are examples of Identity property though.

mrs.sue.....are you there???
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