document.write( "Question 343378: x=y-2z
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\n" ); document.write( "z=2y-2x-3
\n" ); document.write( "use substitution method pls
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Algebra.Com's Answer #245699 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Only certain cases of 3 equations with three
\n" ); document.write( "variables can be solved by substitution.
\n" ); document.write( "Your problem is not one of those cases.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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