How Do You Calculate Reactions at E and Force at C in Statics?

[ME_student]

Homework Statement

Find the components (a) of the reactions at E, (b) of the force exerted at C on member CDE.

Homework Equations

Equations are on attachment

The Attempt at a Solution

Okay so I am having a hard time figuring out how to obtain Reaction D without using a force triangle because that is what the solution uses. I took sum of the forces in y direction at the pipe and get 10kips but what about the x direction? RD is going to have both x and y components.

 

[ME_student]

I've been working on the problem for awhile. I first analyzed that D has a reaction both in x and y, also assumed B has a reaction in the x and y direction making it more complicated... I emailed my instructor asked him what the problem was. He said B has a reaction Bx and D is a reaction perpendicular to the bar.