document.write( "Question 1116345: The sum of three numbers is 8
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document.write( "The first number minus the second plus the third is 4
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document.write( "The first minus the third is 2
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document.write( "more than the second. Find the numbers. \n" );
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Algebra.Com's Answer #731225 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! The sum of three numbers is 8 \n" ); document.write( ". \n" ); document.write( "The first number minus the second plus the third is 4 \n" ); document.write( ". \n" ); document.write( "The first minus the third is 2 \n" ); document.write( " \n" ); document.write( "more than the second. Find the numbers. \n" ); document.write( "---------- \n" ); document.write( "Call them x, y & z \n" ); document.write( "x + y + z = 8 \n" ); document.write( "x - y + z = 4 \n" ); document.write( "x - z = y + 2 --> x - y - z = 2 \n" ); document.write( "-------- \n" ); document.write( "x + y + z = 8 \n" ); document.write( "x - y + z = 4 \n" ); document.write( "x - y - z = 2 \n" ); document.write( "----------- \n" ); document.write( "Add eqns 1 & 3 \n" ); document.write( "x + y + z = 8 \n" ); document.write( "x - y - z = 2 \n" ); document.write( "------------- \n" ); document.write( "2x = 10 \n" ); document.write( "x = 5 \n" ); document.write( "===================== \n" ); document.write( "Add eqns 1 & 2 \n" ); document.write( "x + y + z = 8 \n" ); document.write( "x - y + z = 4 \n" ); document.write( "2x + 2z = 12 \n" ); document.write( "x + z = 6 \n" ); document.write( "z = 1 \n" ); document.write( "============ \n" ); document.write( "y = 2 \n" ); document.write( " \n" ); document.write( " |