document.write( "Question 1130820: Lyn's father is 4 times as old as her. Five years ago the father was 7 times as old as lyn. How old is lyn now? \n" ); document.write( "

Algebra.Com's Answer #747432 by ikleyn(52873) $\"\"$ $\"About$

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document.write( "Let x be the Lyn's age.\r\n" );
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document.write( "Then the father's age is 4x.\r\n" );
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document.write( "Five years ago Lyn was (x-5) years old, while her father was (4x-5) years old.\r\n" );
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document.write( "The condition says\r\n" );
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document.write( "4x-5 = 7(x-5).\r\n" );
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document.write( "Simplify and solve\r\n" );
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document.write( "4x - 5 = 7x - 35\r\n" );
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document.write( "35 - 5 = 7x - 4x\r\n" );
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document.write( "30 = 3x\r\n" );
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document.write( "x = 30/3 = 10.\r\n" );
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document.write( "Answer.  Lyn is 10 years old now.\r\n" );
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