document.write( "Question 712434: Solve by the elimination method.\r
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document.write( "3x=3+2y
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document.write( "-4/3x+y=-2/3 \n" );
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Algebra.Com's Answer #437935 by algebrahouse.com(1659)![]() ![]() You can put this solution on YOUR website! 3x = 3 + 2y -------------> 3x - 2y = 3 {subtracted 2y from each side of top equation} \n" ); document.write( "(-4/3)x + y = -2/3 ------> -4x + 3y = -2 {multiplied bottom equation by 3}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3x - 2y = 3 ------> 12x - 8y = 12 {multiplied top equation by 4} \n" ); document.write( "-4x + 3y = -2-----> -12x + 9y = -6 {multiplied bottom equation by 3}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "12x - 8y = 12 \n" ); document.write( "-12x + 9y = -6 \n" ); document.write( "-------------- \n" ); document.write( "y = 6 {added the two equations}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3x = 3 + 2y {original top equation} \n" ); document.write( "3x = 3 + 2(6) {substituted 6, in for y, into top equation} \n" ); document.write( "3x = 3 + 12 {multiplied} \n" ); document.write( "3x = 15 {added} \n" ); document.write( "x = 5 {divided each side by 3}\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 5 and y = 6 \n" ); document.write( " For more help from me, visit: www.algebrahouse.com \n" ); document.write( " |