You should be able to delete any answer you've created, as long as it hasn't been accepted by the question asker.  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

For more information, [this meta post](http://meta.stackexchange.com/questions/5221/what-can-cause-a-post-to-be-deleted-and-what-does-that-actually-mean) covers this topic.