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Mathematics 14 Online
OpenStudy (anonymous):

When explaining how to apply elimination in solving a system of equations (3x+9y=12, 5x=4y+3) - why don't I add the two equations together initially? I'm confused. Shouldn't this be written as 8x+5y=15? HELP!!!

OpenStudy (amistre64):

what have you "eliminated" by just adding them together ??

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