document.write( "Question 487468: one number is 3 times a first number. a third number is 100 more than the first number. if the sum of the three numbers is 585, find the numbers \n" ); document.write( "
Algebra.Com's Answer #333049 by Edwin McCravy(20059)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "One number Y is 3 times a first number X. \r\n" );
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document.write( "Y = 3X\r\n" );
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document.write( "A third number Z is 100 more than the first number X.\r\n" );
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document.write( "Z = X + 100 \r\n" );
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document.write( "The sum of the three numbers is 585\r\n" );
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document.write( "X + Y + Z = 585\r\n" );
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document.write( "Can you solve this system of equation:\r\n" );
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document.write( "ìY = 3X\r\n" );
document.write( "íZ = X + 100\r\n" );
document.write( "îX + Y + Z = 585\r\n" );
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document.write( "If not post again asking how.  The solution is\r\n" );
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document.write( "X = 97, Y = 291, Z = 197\r\n" );
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document.write( "Checking in the words, not the equations:\r\n" );
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document.write( "291 is 3 times 97.  197 is 100 more than the 97. \r\n" );
document.write( "The sum of 97, 291 and 197 is 585.  That checks.\r\n" );
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document.write( "Edwin
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