If this is saying that the shortest side is two less than the other side (which is equivalent to the last side)
x-2+x+x=22
3x-2=22
3x = 24
x = 8, the shortest side would then be 2 less, or 6 feet
OR if this is saying the shortest side is 2 less than the sum of the other two sides:
2x-2+x+x = 22
4x-2 = 22
4x = 24
x = 6, OR the shortest side is 4 feet.
