document.write( "Question 61027: Instructions: Solve each system by the substitution method.\r
\n" ); document.write( "\n" ); document.write( "What is the solution for 4x-y=-3
\n" ); document.write( " y=4x+3
\n" ); document.write( "

Algebra.Com's Answer #41948 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
Y=4X+3
\n" ); document.write( "4X-(4X+3)=-3
\n" ); document.write( "4X-4X-3=-3
\n" ); document.write( "4X-4X=-3+3
\n" ); document.write( "0=0 SHOWS THAT THESE TWO EQUATIONS ARE IDENTICAL
\n" ); document.write( "PROOF
\n" ); document.write( "4X-Y=-3
\n" ); document.write( "-Y=-4X-3
\n" ); document.write( "Y=4X+3 &
\n" ); document.write( "Y=4X+3
\n" ); document.write( "
\n" );