Hello!
To solve this problem, we will use substitution and a system of equations where L=length and w=width.
L=2+2w
2L+2w=25
We know that L equals 2+2w. Lets plug that into the bottom equation and find w.
2(2+2w)+2w=25
4+4w+2w=25
4+6w=25
6w=21
w=3.5
Now that we know w, we can find L.
L=2+7
L=9
We have found the width, but lets check our answer with the system of equations.
9=2+7
18+7=25
The width is 3.5 feet.
Hope this helps!
