document.write( "Question 86620: the sum of 3 numbers is 5. the first number minus the second plus the third is.
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Algebra.Com's Answer #62654 by Edwin McCravy(20056)\"\" \"About 
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the sum of 3 numbers is 5. the first number minus the second plus the third is.
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document.write( "Let the first number be x\r\n" );
document.write( "Let the second number be y\r\n" );
document.write( "Let the third number be z\r\n" );
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document.write( "the sum of 3 numbers is 5. \r\n" );
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document.write( "X + y + z = 5\r\n" );
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document.write( "the first number minus the second plus the third is _____. \r\n" );
document.write( "(You left out this number, so you'll have to fill it in. \r\n" );
document.write( "I'll just leave a blank for now):  \r\n" );
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document.write( "x - y + z = ____\r\n" );
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document.write( "the first minus the third is 3 more than the second. \r\n" );
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document.write( "x - z = y + 3\r\n" );
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document.write( "So you have this system of equations:\r\n" );
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document.write( "x + y + z = 5\r\n" );
document.write( "x - y + z = ____\r\n" );
document.write( "x - z = y + 3\r\n" );
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document.write( "Rearrange the third equation so like letters line\r\n" );
document.write( "up vertically.\r\n" );
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document.write( "x + y + z = 5\r\n" );
document.write( "x - y + z = ____\r\n" );
document.write( "x - y - z = 3\r\n" );
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document.write( "I can't solve it because you left out the number in the\r\n" );
document.write( "blank. \r\n" );
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document.write( "If the number in the blank were \r\n" );
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document.write( "-21, then the solution would be x = 4, y = 13, and z = -12.\r\n" );
document.write( "-19, then the solution would be x = 4, y = 12, and z = -11.\r\n" );
document.write( "-17, then the solution would be x = 4, y = 11, and z = -10.\r\n" );
document.write( "-15, then the solution would be x = 4, y = 10, and z = -9.\r\n" );
document.write( "-13, then the solution would be x = 4, y = 9, and z = -8.\r\n" );
document.write( "-11, then the solution would be x = 4, y = 8, and z = -7.\r\n" );
document.write( "-9, then the solution would be x = 4, y = 7, and z = -6.\r\n" );
document.write( "-7, then the solution would be x = 4, y = 6, and z = -5.\r\n" );
document.write( "-5, then the solution would be x = 4, y = 5, and z = -4.\r\n" );
document.write( "-3, then the solution would be x = 4, y = 4, and z = -3.\r\n" );
document.write( "-1, then the solution would be x = 4, y = 3, and z = -2.\r\n" );
document.write( "1, then the solution would be x = 4, y = 2, and z = -1.\r\n" );
document.write( "3, then the solution would be x = 4, y = 1, and z = 0.\r\n" );
document.write( "5, then the solution would be x = 4, y = 0, and z = 1.\r\n" );
document.write( "7, then the solution would be x = 4, y = -1, and z = 2.\r\n" );
document.write( "9, then the solution would be x = 4, y = -2, and z = 3.\r\n" );
document.write( "11, then the solution would be x = 4, y = -3, and z = 4.\r\n" );
document.write( "13, then the solution would be x = 4, y = -4, and z = 5.\r\n" );
document.write( "15, then the solution would be x = 4, y = -5, and z = 6.\r\n" );
document.write( "17, then the solution would be x = 4, y = -6, and z = 7.\r\n" );
document.write( "19, then the solution would be x = 4, y = -7, and z = 8.\r\n" );
document.write( "21, then the solution would be x = 4, y = -8, and z = 9.\r\n" );
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document.write( "Edwin
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