Find the equivalent resistance of a circuit below

[shashaeee]

Find the equivalent resistance of the circuit shown below. Each of the six resistors has a resistance of 12 ohm.

I just want to make sure I calculated everything right. I don't have the solution available.

Labelling the resistors from my left to the right: R1, R2, R3, R4, R5(bottom), R6

What I did:

R5 + R6 = R56

1/R56 + 1/R4 = R456

R456 + R3 = R3456

1/R3456 + 1/R2 = R23456

R23456 + R1 = Req = 20Ω

Thanks!

 

[Villyer]

Your logic all looks correct to me. I don't have a calculator available, but your work looks fine and the answer seems reasonable.

Edit: The post below me is correct, I missed those errors.

 

[mikelepore]

1/R56 + 1/R4 = R456

No, 1/R56 + 1/R4 = 1/R456

1/R3456 + 1/R2 = R23456

No, 1/R3456 + 1/R2 = 1/R23456

 

[azizlwl]

The resistors are of equal value.
In calculation this value is substituted in the equations.
R5+R6=2R
Next the parallel resistor
2R.R/(2R+R)=2R/3
And the next configuration till R1

 

[shashaeee]

Thanks guys!