What is the equivalent resistance from A to B?

[faradayscat]

Homework Statement

R = 10 Ohms

Homework Equations

R_eq = (1/R₁ + 1/R₂ + ... )^(-1)

R_eq = R₁ + R₂ + ...

The Attempt at a Solution

I honestly don't even know where to start...

The obvious thing to do is

4R + 2R = 6R

That's pretty much all I can come up with that makes sense... Any help?

 

[phinds]

Perhaps it would help to start reducing obvious series and/or parallel resistor sets.