It doesn't seem like roots can be performed in the web version. Specifically, both x^3=8 and (x^2)x=8 seem unsolvable.

It keeps trying to either subtract x^3, or divide by x. I can't get it to create a sqrt no matter what I drag or where.

Edit: it seems to create a sqrt only if I drag one of the x-s over to the other side first in order to make one side only x^2, but then I get a sqrt(8/x) which I can't do anything at all with.

In x^-1=2, I can get to 1=2x but I can't get it to simplify any further. (Edit: I was able to end up with a fraction of -1/-2 which I guess is correct...)