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Greetings,

I have the following circuits (picture attached):

V1 = 9 V

R1 = 1 kΩ

R2 = 7 kΩ

R3 = 7 kΩ

R4 = 0.7 kΩ

R5 = 1.5 kΩ

R6 = 1 kΩ

[ATTACH=full]196158[/ATTACH]

And I am trying to come up with an equivalent resistance so that I can calculate the voltage ( using the voltage divider formula ) at Node.

For the picture in the left I can come with an equivalent resistance:

Req_a = R3 and R4 in series as one

Req_b = Req_a and R2 in parallel as one

Req_c = Req_b and R5 in series as one

The final formula results ( under left picture ).

I have a big problem trying to come up with this approach on right picture. 

Using the voltage divider formula, I just know that the equivalent resistance should be ~ 4133.6 Ω. Can you please help me?

Best regards,