1. The problem statement, all variables and given/known data http://antishift.org/image.php?id=16122&size=medium [Broken] 2. Relevant equations Static Equilibrium equations: since most of the supports are rollers, only y-forces are considered as well as moment equations. I'm pretty sure E and F are hinges so there are no moments around E and F. 3. The attempt at a solution I'm having trouble with solving the FBD equations. First I drew an FBD of segment AE and placed a unit load on the beam at a distance x away from A. Then I solved for the vertical reactions at A and E. But once i do this, I dont know how the reaction a C is affected. can anyone please help me with this? If I know how to do part (a), im confident I can do the rest. thanks!