document.write( "Question 234411: The perimeter of a rectangular driveway is 168 feet. The length is 12 feet longer than three times the width. What are the dimensions of the driveway?
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Algebra.Com's Answer #172874 by scott8148(6628)\"\" \"About 
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\"The perimeter of a rectangular driveway is 168 feet\" ___ 2L + 2W = 168\r
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\n" ); document.write( "\n" ); document.write( "\"The length is 12 feet longer than three times the width\" ___ L = 3W + 12\r
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\n" ); document.write( "\n" ); document.write( "substitute for L to find W, then substitute back to find L
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