that's wrong, though. x becomes a copy of y, which is only transiently the same.
What is "transiently the same"?
Genuinely asking - my first thoughts are:
"transiently the same" is not the same as "the same", hence it is not "the same", and therefore "not the same".
No jokes on the meta-level please :o)
"x gets 7" is fine but
"x becomes the same as y" seems better than "x gets y"