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Wiki User
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Veda Glover ∙
-9 + -4 = -1*(9+4) = -13
5. Just do 9 minus 4. 5 plus 4 equals 9
Commutative
4 + 4 + 1 = 9
Commutativity.
144 9+7 = 16 and 9*16 = 144
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The additive property.
Commutative Property of Addition
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the answer to that is 5
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Anton Heinrich Springer?