Hello there.

I've been having extreme difficulty with this problem:

(3/9^x)=243

I can't figure out how to isolate the x and find the answer. Granted, I already know the answer is -2, but what I really want is to find out how to reach this answer. The only thing that seemed to work so far was dividing both sides by 3, leaving 9^x=81. And from there I just kinda squared it and hoped something would happen. I'm sure there's a better way, and I would really appreciate it if someone would help me figure it out.