document.write( "Question 678220: how do i solve x-y=-10 in a three equation
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Algebra.Com's Answer #421212 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " 3x4y=12...post this question again...here is missing sign or something...
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