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Mathematics 15 Online
OpenStudy (anonymous):

solve using matrices x+3y=13 2x-y=-9

OpenStudy (amistre64):

did you not want to work thru it the last time?

OpenStudy (amistre64):

please do not post the same questions over and over again if you are not going to participate in the solution process http://openstudy.com/users/commitingsins790#/updates/51a61aa8e4b041f5501d3ddc

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