Originally Posted by

**ejanderson** Thank you so much for the reply.

My only question is realy a clarification point...

If I have a -x-23

------

y-z

(just for argument sake)

I can make both terms in the numerator positive by making the entire fraction negative?:

-x-23 = x+23

------- - -------

y - z y - z

If this is correct, I have a new confusion. If I remember right, you can change two signs of the fraction and still keep it equivalent to the original fraction. If I change the two signs in the numerator to positive and then change the sign of the fraction itself...then thats three signs changed, not two. Is it still equivalent?