document.write( "Question 1147099: Kate’s father is 50 years old and Kate is 24 years old now. How many years ago was Kate’s father three times as old as her?
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Algebra.Com's Answer #768387 by ikleyn(52788) $\"\"$ $\"About$

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document.write( "Let x = \"How many years ago\".\r\n" );
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document.write( "Then\r\n" );
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document.write( "    50-x = 3*(24-x)\r\n" );
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document.write( "    50 - x = 72 - 3x\r\n" );
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document.write( "    3x - x = 72 - 50\r\n" );
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document.write( "    2x     = 22\r\n" );
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document.write( "     x     = 22/2 = 11 years ago.    ANSWER\r\n" );
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