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OpenStudy (anonymous):
7r-5r+2=5r-r step by step plz
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jimthompson5910 (jim_thompson5910):
7r-5r+2=5r-r 2r+2=5r-r 2r+2=4r 2r=4r-2 2r-4r=-2 -2r=-2 r=-2/(-2) r=1
OpenStudy (mathteacher1729):
For problems like these... go to http://www.wolframalpha.com type solve 7r-5r+2=5r-r click "show steps" :)
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