Question

I have a quite easy question, but I saw it many times done on various ways: If I've an equation, on which site do I rearrange? (Ex.: y= gt²/2 , to t) I always try to bring the searched symbol on the left side, but some equations I've taken out of my physics book just work, if you do it from left to right. (Hope you can follow me :D)

Answer 1

It doesn't matter... I could write "A is the same as B" or "B is the same as A" and they'd mean exactly the same thing.

Answer 2

But in this case, how do they get the x down?