by Guest » Tue Sep 03, 2019 7:44 am
I hope you understand that a rectangle has four sides, two lengths, l, and two widths, w. The length of the fence will be 2l+ 2w= 54. "length is 3 foot more than twice the width". "Twice the width" is 2w. 3 feet more than that is 2w+ 3. l= 2w+ 3 so 2l+ 2w= 2(2w+ 3)+ 2w= 4w+ 6+ 2w= 6w+ 6= 54. Can you solve that equation?
You say "need to solve" but you don't say what problem you want to solve! What are trying to find?