Posted by James on Thursday, August 27, 2009 at 10:49am.
multiply the second equation by 2, then add the equations.
4x-y+9+6y-4x=14
5y+9=14 solve for y,
am I doing
2(5y + 9)=14
10y + 18 =14
does y= -2.5
oh i think i got it does y=1
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