Word Spy - Alphabet Language Riddle?

[DeathGeneration]

Hey Guys, I was at School and my Teacher Gave us a Riddle from This Book Called Word Spy.
Its in Some Sort of Left and Right Code.

If you Know this Please answer and Give Some Detail on how you did it, as i need to give the teacher how do i did it.

Thankz.

Its...

MLD GSZG BLF SZEV.
It Also Says "Think about the Alphabet Backwards and Forwards."

 

[soccerma13]

NOW THAT YOU HAVE

IF YOU WRITE THE ALPHABET BACKWARDS, THEN UNDER THAT WRITE IT FORWARDS, YOU WILL SEE THE CODE


PS - ALL CAPS IS NOT SHOUTING, ITS FOR PEOPLE OVER 40 WHO CAN'T SEE, LOL

 

[djlt00]

Now that you have

=]

a = z
b = y
c = x
d = w
e = v
f = u

and so on

 

[Black Kat]

Now that you have. - That's the answer

It's a simple letter substitutuion where you substitute the letters of the alphabet for the letter of the alpabet written backwards A=Z, B = Y, C = X etc.