document.write( "Question 699383: solve the following system\r
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document.write( "x+2y+1=0
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document.write( "xy-y=0 \n" );
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Algebra.Com's Answer #431363 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! x + 2y + 1 = 0 \n" ); document.write( ": \n" ); document.write( "xy - y = 0 \n" ); document.write( "xy = y \n" ); document.write( "divide both sides by y \n" ); document.write( "x = 1 \n" ); document.write( ": \n" ); document.write( "Replace x in the 1st equation with 1, find y \n" ); document.write( "1 + 2y + 1 = 0 \n" ); document.write( "2y + 2 = 0 \n" ); document.write( "2y = -2 \n" ); document.write( "y = -1 \n" ); document.write( ": \n" ); document.write( "solution: x=1, y=-1 \n" ); document.write( " |