I have this physics problem and I need to solve for $\alpha$, but I can't seem to figure out how. I have been trying for a while and I keep running into dead ends. This is how far I get before I start having problems.
After this point, I usually try to divide by what's being multiplied against $\alpha$ on the right side, but then I can't figure how to isolate $\alpha$ on the left side! Any help will be very appreciated!