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12-09-2017
Mathematics

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Which equation is an example of the use of the associative property of addition ?

1) x+7=7+x
2)3(x+y)=3x+3y
3)(x+y) +3 =x+(y+3)
4)3+(x+y)=(x+y)+3

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12-09-2017

4 is an example of the associative property of addition

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