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An eighth-grade student claims she can prove that subtraction of integers is commutative. She points out that if a and b are integers, then a - b = a + (-b)
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An eighth-grade student claims she can prove that subtraction of integers is commutative. She points out that if a and b are integers, then

a - b = a + (-b)

User Nibnut
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1 Answer

6 votes
That is right. Just like a * b = b * a
User Kann
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