document.write( "Question 405796: Solve by substitution:3y+4x=5 x+y=1 \n" ); document.write( "
Algebra.Com's Answer #286588 by rfer(16322)\"\" \"About 
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3(1-x)+4x=5
\n" ); document.write( "3-3x+4x=5
\n" ); document.write( "x=2
\n" ); document.write( "------------
\n" ); document.write( "3y+4*2=5
\n" ); document.write( "3y+8=5
\n" ); document.write( "3y=-3
\n" ); document.write( "y=-1
\n" ); document.write( "-----------------
\n" ); document.write( "2-1=1
\n" ); document.write( "
\n" );