# Stuck in a Thévenin's Theorem exercise

I'm practicing applying Thévenin's Theorem, and I'm struggling with computing $$\R_{th}\$$ in the following circuit:

My attempt: after removing voltage and current sources, and combining resistors in series, I get:

simulate this circuit – Schematic created using CircuitLab

• I can disregard $$\R_6\$$, right?

• Can I treat $$\R_1+R_2\$$ and $$\R_4\$$ as resistors in series? The fact that node $$\A\$$ lies between them makes me unsure.

• Regardless of the answer to the previous questions, could I get a hint as to how to continue?

• What happened to R3? Commented Jan 25 at 21:35
• You can disregard R7+ R8 because they are shorted.
– G36
Commented Jan 25 at 21:37
• @Andyaka OP wants to finds the current and the voltage across R3 using Thevenins Theorem.
– G36
Commented Jan 25 at 21:39
• @G36 how are you able to say that. I see nothing in the post that says that. So, what happened to R3? Commented Jan 25 at 22:03
• @G36 Sorry, I should have stated it, but it is true.
– Sam
Commented Jan 25 at 22:04