document.write( "Question 215613: 3x+4y=-8 and -5x+y=-25 \n" ); document.write( "
Algebra.Com's Answer #162906 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
3x+4y=-8
\n" ); document.write( "-5x+y=-25\r
\n" ); document.write( "\n" ); document.write( "----
\n" ); document.write( "Multiply thru the 2nd equation by 4 to prepare for elimination:
\n" ); document.write( "----
\n" ); document.write( "3x+4y = -8
\n" ); document.write( "-20x+4y = -100
\n" ); document.write( "-------------------------
\n" ); document.write( "Subtract the 2nd from the 1st and solve for \"x\":
\n" ); document.write( "23x = 92
\n" ); document.write( "x = 4
\n" ); document.write( "---
\n" ); document.write( "Substitute into 3x+4y=-8 to solve for \"y\":
\n" ); document.write( "3*4 + 4y = -8
\n" ); document.write( "3 + y = -2
\n" ); document.write( "y = -5
\n" ); document.write( "------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "
\n" );