To find the perimeters, all we need to do is add the sides together.
Top garden: (2x-2) + (x+1) + (x) + (x+1) = 5x
Bottom garden: (2x-9) + (x+1) + (x+8) + (x) = 5x
If the perimeters are the same, we can set them equal to each other.
5x = 5x
No matter what x is equal to, the perimeters will be equal, so yes there is more than one value for x.