who likes lateral thinking?

[kismet09]

if anyone can solve this for me, i'll give you a cookie:

29A + x = 29D
AB + 2 = AD
5 + 7 = y
A + 1 = B
x + y = ???

And it isn't a whole number from 1 to 150.

Comments

[tactful-cactus.livejournal.com]

::boing::eyes cross::

I have plugged in about 5 separate sets of numbers that make all those statements true. Is this considered algebra? I've forgotten how to do it!