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solve by flexibility method, this is my homework but i dont understand, please help me  

Structural Analysis

Areas 50 kN 3 1 3: 10000 mm2 1 4 4000 mm2 3 m 3 2: 15000 mm 2 1 4 4000 mm 4 2 200 kN 4 m 3000 mm2 4 m 4 3: X- E 200 kN/mm

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0Tan3)36 mettod ewbdliny 50KN Nngef reachon (23-3) D- Y-3 + m- Ose 2+2=4 Dsi m5 5m 3m He D-Y-3-4-3 = 1 5e j4 5m A 36-569 j-3unit land at B awahon d fovces in memben (K) D at oad D S0 FOA =FDB al c HA c IkN A T) (T) 1KN Fac FC 1N CTension) AC Tension

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