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November 27, 2015
Posted by **Ashley** on Thursday, January 28, 2010 at 1:55pm.

- College Algebra -
**bobpursley**, Thursday, January 28, 2010 at 2:20pmsubtract the first equation from the second

2x-7y=43

-(x-7y)=-46

2x-7y=43

-x+7y=-46

x + 0y=-3