document.write( "Question 89811: 3x+4y=2
\n" ); document.write( "x-y=1 \n" ); document.write( "
Algebra.Com's Answer #65193 by checkley75(3666)\"\" \"About 
You can put this solution on YOUR website!
X-Y=1 OR X=Y+1 NOW SUBSTITUTE (Y+1) FOR X & SOLVE FOR Y
\n" ); document.write( "3(Y+1)+4Y=2
\n" ); document.write( "3Y+3+4Y=2
\n" ); document.write( "7Y=2-3
\n" ); document.write( "7Y=-1
\n" ); document.write( "Y=-1/7 ANSWER.
\n" ); document.write( "X=-1/7+1
\n" ); document.write( "X=6/7 ANSWER.
\n" ); document.write( "PROOF
\n" ); document.write( "3*6/7+4*-1/7=2
\n" ); document.write( "18/7-4/7=2
\n" ); document.write( "(18-4)/7=2
\n" ); document.write( "14/7=2
\n" ); document.write( "2=2\r
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