Overhang DE is similar to case 1. The concentrated load P creates a moment MD that acts counterclockwise on the left end of overhang DE. An equal magnitude moment acting in a clockwise direction is applied by the overhang to span BD.

Here is Canvas object wihch demonstrate the problem.
The expression for the deflection in the simply supported span at C produced by the clockwise moment MD is:

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Simply supported beam – concentrated moment at support