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## Homework Statement

Find the node voltage

## Homework Equations

Va = Vb x R1/(R1+R0)

## The Attempt at a Solution

I didnt have the original picture of the question but this example is exactly same as the question that i had to solve. but I dont understand this thing from the first step.

How can Vb = Va x (4//4)/(4//4+2)? I know that the 2ohms at the right side of circuit can be added as series and fucntions as 4ohm and it is paralle to 4 ohm in the middle. and so the total resistance of the circuit is 4//4 +2, but why do we use 4//4 to find Vb? isnt it just 2ohm in front of Vb that we have to use?

Help please

Thanks