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Mathematics 20 Online
OpenStudy (anonymous):

add (r-5s+7)+(3r=4s)+(s+9)

OpenStudy (anonymous):

write it correctly

OpenStudy (anonymous):

my bad.... (r-5s+7)+(3r+4s)+(s+9)

OpenStudy (anonymous):

4r+16

OpenStudy (anonymous):

I got 4r+16 too

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