Finding equivalent resistance with mixed series and parallel resistors

[Laphanga]

Use Delta to Wye Transformation. It's another way to find equivalent resistance of this network.

 

[ehild]

what happens if i get a negative value for V?
i got V_P' = 3.4413 V and V_P = -3.709497 V
may be my calculations but ...i ended up with 0.8477 for Req

Sorry, I did not notice that your I2 was also wrong. I2 flows from potential V_P to zero, so I2=Vp/R2.

ehild