document.write( "Question 1099225: Ade is 16, His Father 43, How many years ago was His Father 4 times his age? \n" ); document.write( "

Algebra.Com's Answer #713659 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "43-x = 4*(16-x).\r\n" );
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document.write( "43-x = 64 - 4x,\r\n" );
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document.write( "4x - x = 64 - 43 = 21  ====>  3x = 21  ====>  x =  = 7.\r\n" );
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document.write( "Answer.  7 years ago.\r\n" );
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