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Mathematics 21 Online
OpenStudy (anonymous):

-7 + 9 = -9 + 7 true, false, or open?

Nnesha (nnesha):

ok -7 +9 = 2 and -9+7 =-2 so 2=-2 is it equal??

Nnesha (nnesha):

2 and -2 is not equal they have opposite

Nnesha (nnesha):

sign **

OpenStudy (anonymous):

so it's false, am i wrong?

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