Is my Req correct? (very simple electronics question)

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The discussion centers on calculating the equivalent resistance (Req) of a circuit, where the user seeks validation of their calculations. The calculations were confirmed as correct, with a specific error identified: the user overestimated the resistance in R1 and R2 by 100 Ohms. The conversation concludes with the user expressing gratitude for the correction and indicating confidence in the rest of their calculations.

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Femme_physics
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I just need to find the Req of the circuit. Everything is attached. Ignore the fact there's no R4.

Is it correct?
 

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Your symbolic calculations are correct, yes. You have, however, added 100 Ohm too much in R1,2.
 
Ah, thank you for catching my thoughtless error :) unless anyone makes another reply I'm going to assume other than that it's all correct
 

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