SOLUTION: What is 2+9=_+2

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Question 668619: What is 2+9=_+2
Found 2 solutions by swincher4391, ReadingBoosters:
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
By our commutative property, _ = 9.

Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Are you asking
2 + 9 = ? + 2
...
2 + 9 = 9 + 2
.....................
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