Maxwell's mesh analysis dc circuit

[jrstickballs]

Homework Statement

Find the value of CSB(current source B) and determine the value of I.

Homework Equations

Mesh equations

The Attempt at a Solution

mesh:

a -> Ia = 0
b -> 11Ib = -12
c -> 6Ic = 12
d -> 2Id = -8
e -> Ie = -CSB

Ic = 2 A
Id = -4 A

then I cannot further continue this one... :(

 

[gneill]

Your diagram indicates CS_A = 8V, but isn't it a current source? Or is this supposed to represent the voltage that the current source happens to be producing in order to maintain its (unspecified) current?