Need to find the charge of this capacitor?

[letsgo]

Homework Statement

Given,

What is the charge on C₂ (the highlighted capacitor).
The answer is supposed to be Q₂ = 5 uC

Homework Equations

C=Q/V
Loop Rule?

The Attempt at a Solution

What I did, is using the loop rule on the smaller loop, I set up
V₂ - V₃ - V_{of C2} = 0
6 V - 4 V = V_{of C2}
2 V = V_{of C2}

So since,
V_{of C2} = Q₂/C₂

Then,
Q₂ = (2 V)(5.0 uF)

And Q = 1.0x10^-5 C, however that isn't the answer... It's supposed to be 5 uC.

Solution
Wow, I just figured it out, stupid mistake. It should be V₂ + V₃ - V_{of C2} = 0. That fixes it.

 

[Simon Bridge]

Well done - sometimes telling it so someone else focusses your mind and you see what went wrong.