Help with summing the moments in statics

[thekrustyone]

Homework Statement

I need to sum the moments on a and b but when i sum them at b the number I get doesn't work when I check and sum them at a.

Homework Equations

The Attempt at a Solution

 

[thekrustyone]

(-200x4)+(-60x2.5)+(-60x2.5)+(rbhx10)=rbh=110

(200x6)+(-60x2.5)+(-60x2.5)+(rahx10)=-90

Sum horz=0=110+200+rah if moments summed at A
Rah=-310

Sum horz=0=-90+200+rbh if moments summed at B
Rbh=-110

Why are they not the same I don't understand

 

[NascentOxygen]

(-200x4)+(-60x2.5)+(-60x2.5)+(rbhx10)=rbh=110

Should be rah

 

[NascentOxygen]

Sum horz=0=110+200+rah if moments summed at A

The sum of the horizontal forces must be the sum of ALL horizontal forces. There are 3 forces with horizontal components. This sum equals zero and has nothing to do with the point about which you choose to sum moments.

Another forces equation can be obtained by setting the sum of ALL vertical forces = 0