document.write( "Question 136739: Hi,
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document.write( " Can you help me with this math problem?\r
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document.write( "Solve the problem.
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document.write( "14.)The sum of three numbers is -5. The first, minus the second, plus 4 times the third, is -20. The third, plus 4 times the first, plus the second, is -20. What are the numbers? \r
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document.write( "The answer should be (-5,3,-3) \n" );
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Algebra.Com's Answer #100120 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! x+y+z=-5 or y+z=-x-5 \n" ); document.write( "x-y+4z=-20 \n" ); document.write( "z+4x+y=-20 y+z=-4x-20 \n" ); document.write( "-x-5=-4x-20 \n" ); document.write( "-x+4x=-20+5 \n" ); document.write( "3x=-15 \n" ); document.write( "x=-15/3 \n" ); document.write( "x=-5 answer. \n" ); document.write( "-5+y+z=-5 \n" ); document.write( "y+z=+5-5 \n" ); document.write( "y+z=0 \n" ); document.write( "y=-z \n" ); document.write( "-5+z+4z=-20 \n" ); document.write( "5z=-20+5 \n" ); document.write( "5z=-15 \n" ); document.write( "z=-15/5 \n" ); document.write( "z=-3 answer. \n" ); document.write( "y=-(-3) \n" ); document.write( "y=3 answer.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |