s6h1ugcrishmica s6h1ugcrishmica

30-09-2016
Mathematics

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does 7-2 = 2-7 ? explain why or why not.

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KillerNarWhal KillerNarWhal

30-09-2016

No. 7-2=5 and 2-7= -5. So 7-2= positive 5 and 2-7= negative 5.

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