I do not know.
I just wrote down 3 equations for each drawing (1+2) meaning 6 in total, but they are the same.
1.
X forces: 450N + Dx + Bx = 0
Y: By - Ay - Dy = 0
M around B makes: +Ay. 0,15 -450. 0,25 - Dy.0,45 + Dx.0,1
for 2 its the same: they are the same then for 1.
so...