document.write( "Question 470112: y=-x-9
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\n" ); document.write( "How do I solve the sytem of equation using the subsitution method? Please show the work!
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Algebra.Com's Answer #322481 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Since y = x-9, sub for y in the other equation.
\n" ); document.write( "The 2nd equation is not clear, tho. If you want free help, we want better typing.
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