Solve for i

[timrehix]

I got this off a fairly popular web site so just ignore me if you have seen this before. I want to see if people who haven’t seen the answer still come up with the same cutsie answer the original author of the equation came up with. I went through the math and came up with a different answer then realized I did a step wrong and redid the equation. The second time I got the same answer as the author.

And it’s a good exercise to see if you remember your high school algebra.

9x - 7i > 3(3x-7u)

If any one wants the answer I will post it.