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Mathematics 24 Online
OpenStudy (anonymous):

solve by the elimination method 7r-8s=55 8r+7s=79

OpenStudy (anonymous):

multiply the top equation by 8 and bottom by 7, then add them, the r terms will cancel out

hero (hero):

solve for s at your own risk

OpenStudy (anonymous):

|dw:1319835788842:dw|

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