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OpenStudy (anonymous):
solve by elimination...2r-5s=9, 5r+2s=37
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OpenStudy (anonymous):
2r-5s=9 multiply by 2 5r+2s=37 multiply by5 --------- 4r-10s=18 25r+10s=185 ------------ 29r=203 r=7
OpenStudy (anonymous):
I need an ordered pair for this
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