You should be able to delete any answer you've created.  I've included a screen shot (complete with free-hand circle) from a site where I have lower reputation, to verify that you shouldn't need a certain reputation amount to delete your own answer:

![enter image description here][1]


  [1]: https://i.sstatic.net/63KEq.png

Edit: For more information, [this meta post](http://meta.stackoverflow.com/questions/73765/how-can-i-delete-my-answer) covers this topic.