Answers

2015-06-09T20:36:38+05:30
Yes its equal because addition is commulative.

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2015-06-09T20:40:27+05:30
A + (b+c) = (a+b) + 3
or, 10 + (-2+3) = (10 -2) + 3

They are equal because of communicative law of addition
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