document.write( "Question 1098839: The width of a rectangle is 16 feet less than 3 times the length . if the area is 35 square feet , find the dimensions of the rectangle \n" ); document.write( "
Algebra.Com's Answer #713241 by Fombitz(32388)\"\" \"About 
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\"W=3L-16\"
\n" ); document.write( "and
\n" ); document.write( "\"A=LW\"
\n" ); document.write( "\"LW=35\"
\n" ); document.write( "Substituting,
\n" ); document.write( "\"L%283L-16%29=35\"
\n" ); document.write( "\"3L%5E2-16L-35=0\"
\n" ); document.write( "\"%28L-7%29%283L%2B5%29=0\"
\n" ); document.write( "Only positive values make sense for the length,
\n" ); document.write( "\"L-7=0\"
\n" ); document.write( "\"L=7\"\"ft\"
\n" ); document.write( "Now use either equation to solve for W.\r
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