document.write( "Question 849962: A rectangle has width that is 7 more than its length and an area of 30. Find the length and width of the rectangle. \n" ); document.write( "

Algebra.Com's Answer #511865 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"A%5Br%5D=L%2AW=30\"$
\n" ); document.write( " $\"W=L%2B7\"$
\n" ); document.write( "So,
\n" ); document.write( " $\"L%2A%28L%2B7%29=30\"$
\n" ); document.write( " $\"L%5E2%2B7L-30=0\"$
\n" ); document.write( " $\"%28L%2B10%29%28L-3%29=0\"$
\n" ); document.write( "Two solutions:
\n" ); document.write( " $\"L%2B10=0\"$
\n" ); document.write( " $\"L=-10\"$
\n" ); document.write( "Not a solution since negative length doesn't make sense.
\n" ); document.write( " $\"L-3=0\"$
\n" ); document.write( " $\"L=3\"$
\n" ); document.write( "then
\n" ); document.write( " $\"W=3%2B7=10\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );