You can
put this solution on YOUR website!The perimeter is 2l+2w=128
In addition you are told the following:
6l+9w=444
Solve by substitution:
l+w=64
l=64-w
Rewrite the 2nd equation to get:
6(64-w)+9w=444
384-6w+9w=444
3w=60
w=20 feet
l=64-20=44 feet
Cheers,
Stan H.