New Variable x

I just added a new variable x.
Revert "New Variable x"

This reverts commit aebb2bd97269a5e6bbdf65d168edbac9df745f80.
Revert "Revert "New Variable x""

This reverts commit 92fbb256a3e02f10893fab35a1d25340685fe55f.
I just added a comment.

Looks good so far.