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OpenStudy (anonymous):
-40 - (-53)
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OpenStudy (anonymous):
13
OpenStudy (anonymous):
-40 +53=13
OpenStudy (saifoo.khan):
both are wrong. sorry
OpenStudy (anonymous):
-40+53=13
OpenStudy (anonymous):
really?
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OpenStudy (anonymous):
it changes because two negatviis = positive
OpenStudy (saifoo.khan):
they are right. LOL.
OpenStudy (anonymous):
ohh I see LOL oh adorable tofu!
OpenStudy (saifoo.khan):
lol. :D
OpenStudy (saifoo.khan):
CC/
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OpenStudy (saifoo.khan):
\CC/
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