[SOLVED] Help sovling a simple equation

sin(theta)(V2) - (V1)(d1) = (d2)cos(theta)

I need to solve this for theta.

I wasn't sure where to put this, so I put it here as it seems most general.

This isn't for a class (it's for some code I'm working on), so I don't really know what section you'd want this under. Algebra 1, maybe?

I feel sort of dumb for not being able to get this, as it LOOKS very simple, but I've tried every trig identity I know and I simply cannot simplify for theta.

Any help would be much appreciated.