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Mathematics 13 Online
OpenStudy (anonymous):

can anyone see mistake here?

OpenStudy (anonymous):

please see attachment

OpenStudy (callisto):

OpenStudy (anonymous):

is it wrong? doesn't look like anythings wrong there...

OpenStudy (ash2326):

Yeah it's correct

OpenStudy (anonymous):

substitutions seems to be in order...

OpenStudy (anonymous):

yep it was correct i was confusing by myself

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