I am doing my own calculation, but came up with this :SSS?

Question

I am doing a calculation on equivalent resistance of a parallel circuit:

(1/nΩ) means 1 over nΩ
(Req) means Equivalent Value

R1 =6
R2 =6 Ω
R3 =6 Ω

1/Req = 1/R1 + 1/R2 + 1/R3
1/Req = 1/R1 + 1/R2 + 1/R3
1/Req = 1/6 Ω + 1/6 Ω + 1/6 Ω
1/Req = 3/6 Ω
1/Req = 1/2 Ω


**After 1/Req = 1/2Ω, I dont know what to do to make the left side: become Req and the right side become just the value of an ohm.**

Answer 1

Just take the reciprocal of both sides. Divide 1 by each side, and you have the answer Req = 2. The easiest way to find the equivalent value of three resistors of the same value is to divide the sum by the number of resistors. In this case, you can do it in your head.

Answer 2

1/Req = 1/2

multiply both sides by Req

1 = (1/2)* Req

divide both sides by 1/2:

Req = 2 ohms