Solution to Problem 667 | Deflections in Simply Supported Beams

Problem 667
Determine the value of EIδ at the right end of the overhanging beam shown in Fig. P-667. Is the deflection up or down?
 

Overhang beam with triangular and point loads

 

Solution 667

 

In reply to by Arthur Mendiola

I can't quite believe on the answer or maybe I don't understand it, 1280 should be add to 1200 because the tangent is above the NA of the beam. My answer is 2480 lb ft³