Question 1041500
<pre>
You needed some parentheses in there to keep what 
you wrote readable.  

So I will assume you meant this:

I) F(N-1) -   F(N)    =    F(N+1),  N > 1

II)F(N+1) -   F(N)    =    F(N-1),  N > 1

The Fibonacci recursion formula says

{{{(matrix(6,1,
Any,term,after,the,second,one))}}}{{{""=""}}}{{{(matrix(5,1,
The,term,just,before,it))}}}{{{""+""}}}{{{(matrix(9,1,
The,term,just,before,the,one,just,before,it))}}}
</pre>
I) F(N-1) -  F(N)    =    F(N+1)
<pre>
F(N-1) is the term just before F(N), which is the term just
before F(N+1).

...,F(N-1),F(N),F(N+1),...

The correct formula should be F(N+1) = F(N-1) + F(N)

But that one (I) has a minus where it should be a plus.  So that one 
is wrong.
</pre>
II)F(N+1) -   F(N)    =    F(N-1),  N > 1
<pre>
This one is correct because if you solve for F(N+1),
by adding F(N) to both sides, you get:

             F(N+1) = F(N-1) + F(N)

Edwin</pre>