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Mathematics 20 Online
OpenStudy (anonymous):

-9r+10r

OpenStudy (anonymous):

=r

OpenStudy (anonymous):

r

OpenStudy (anonymous):

(-9 + 10)r

OpenStudy (anonymous):

+r

OpenStudy (anonymous):

Geez... You guys don't have to write the same thing over and over... I wrote it already.

OpenStudy (anonymous):

haha

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