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April 16, 2014

Homework Help: MATH!!!!!HELP

Posted by Andraline on Sunday, January 16, 2011 at 10:58pm.

2x+3y = 7
4x-3y = -19
6x=12/6
x = -2

this is elimination method. i have few questions, when do we know wen to add or subtract? multiply? how? i dont know nothing.

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