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OpenStudy (anonymous):
Is –7 + 9 = –9 + 7 true, false, or open?
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OpenStudy (nenadmatematika):
false, because 2 is not equal to -2
OpenStudy (bahrom7893):
FALSE hahaha
OpenStudy (bahrom7893):
my math professor would say open.... -_-..he's way into abstract math nonsense
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