The Value of X

So you put A and B together,
But they're both divided by C,
This makes D greater than E,
And throws in a conflict with F

But if G and H move away,
Leaving the other side with I,
And taking the sum of J and K,
L's role makes perfect sense

M and N can't be combined,
But you can still factor O in,
P and Q have different roots,
Still both to the power of R

S is prime and stands alone,
While T and U complicate,
V is not affected by W,
And if Y is not equal to Z,

Then what is the value of X?