document.write( "Question 360362: The plans for a rectangular deck call for the width to be 10ft less than the length. The overall perimeter of the deck is 56ft. What should the length be? \n" ); document.write( "
Algebra.Com's Answer #257155 by checkley77(12844)\"\" \"About 
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W=L-10
\n" ); document.write( "2L+2W=56
\n" ); document.write( "2L+2(L-10)=56
\n" ); document.write( "2L+2L-20=56
\n" ); document.write( "4L=56+20
\n" ); document.write( "4L=76
\n" ); document.write( "L=76/4
\n" ); document.write( "L=19 FT IS THE LENGTH.
\n" ); document.write( "W=19-10=9 FT. IS THE WIDTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*19+2*9=56
\n" ); document.write( "38+18=56
\n" ); document.write( "56=56
\n" ); document.write( "
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