1. The problem statement, all variables and given/known data Lets say i have a structure like this , at A and B are fixed support ( it resists moment about , force in x and y direction) I wanna find the moment about the A , should I include the MA as well in my calculation or no ? 2. Relevant equations 3. The attempt at a solution moment about A = MB +MA + W(L/2) -RBy(L) = 0 ? or moment about A = MB + W(L/2) -RBy(L) = 0 ?