Ok Everyone, I'm in DIRE NEED OF HELP....
.... as I've been out of practice now for a while - though I'm sure this is an easy problem to solve. Please see attached free body diagram.
Need to find reactions, R1, R2, R3 to support a 185 lb load as per the attached. I have done summation of forces R1 + R2 + R3 - 185 = 0 and summation of Moments about R1=0. What's my 3rd equation?!?!?!?