document.write( "Question 1016696: The sum of the ages of Luis and Shannon is 108 years. 9 years ago, Luis's age was 4 times Shannon's age. How old is Luis now?
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Algebra.Com's Answer #633119 by MathTherapy(10557) $\"\"$ $\"About$

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The sum of the ages of Luis and Shannon is 108 years. 9 years ago, Luis's age was 4 times Shannon's age. How old is Luis now?
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Let Luis' age, be L
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document.write( "Then Shannon's is: 108 - L
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document.write( "We then get: L - 9 = 4(108 - L - 9)			
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document.write( "L - 9 = 4(99 - L)
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document.write( "L - 9 = 396 - 4L 
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document.write( "L + 4L = 396 + 9
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document.write( "5L = 405
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document.write( "L, or Luis' current age = , or  \n" );
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