document.write( "Question 299534: write an algebraic equation and use it solve the problem.
\n" ); document.write( "problem is: Dave and Jane Wells have a new rectanglular driveway. The perimeter is 168 feet. the length is 12 feet longer than three times the width. What are the dimensions of the driveway. I know P=2L+2W and that for this problem L=3*W+12 but I'm confused as to how to put it together in one equation or where to go from here. Thanks. \n" ); document.write( "
Algebra.Com's Answer #215228 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Dave and Jane Wells have a new rectanglular driveway. The perimeter is 168 feet. the length is 12 feet longer than three times the width. What are the dimensions of the driveway. I know P=2L+2W and that for this problem L=3*W+12 but I'm confused as to how to put it together in one equation or where to go from here
\n" ); document.write( "---
\n" ); document.write( "Substitute and Solve:
\n" ); document.write( "168 = 2W + 2(3W+12)
\n" ); document.write( "---
\n" ); document.write( "84 = W + 3W+12
\n" ); document.write( "4W = 72
\n" ); document.write( "W = 18
\n" ); document.write( "---
\n" ); document.write( "Since L = 3W + 12,
\n" ); document.write( "L = 3*18+12
\n" ); document.write( "L = 66
\n" ); document.write( "=============
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "============= \n" ); document.write( "
\n" );