document.write( "Question 1165771: Karen’s father is 7 times as old as Karen is. One year ago he was 9 times as old as Karen was. Find Karen’s present age. \n" ); document.write( "

Algebra.Com's Answer #790241 by ikleyn(52794) $\"\"$ $\"About$

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document.write( "Let x = Karen's age.\r\n" );
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document.write( "Then father's age is 7x.\r\n" );
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document.write( "One year ago\r\n" );
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document.write( "    9*(x-1) = 7x-1.\r\n" );
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document.write( "Simplify and solve\r\n" );
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document.write( "    9x - 9 = 7x - 1\r\n" );
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document.write( "    9x - 7x = 9 - 1\r\n" );
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document.write( "    2x      = 8\r\n" );
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document.write( "     x      = 4\r\n" );
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document.write( "ANSWER.  Karen's present age is 4 years.\r\n" );
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