document.write( "Question 223212: what is the length and width of a rectangle if the length is 12 more than the width and the perimeter is 7 times the width? \n" ); document.write( "
Algebra.Com's Answer #166937 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
P=2w+2l
\n" ); document.write( "7w=2w+2(w+12)
\n" ); document.write( "7w=4w+24
\n" ); document.write( "3w=24
\n" ); document.write( "w=8
\n" ); document.write( "l=w+12=20
\n" ); document.write( "P=7w=56
\n" ); document.write( "
\n" );