How to resolve this equation $(2x-1)^{-3} = 27$

Question

I try to resolve this equation because the ask I think is nót correct. can explain the steps for resolve this?

Answer 1

It should read:

$$(2x-1)^{-3} = 27 \implies \frac{1}{(2x-1)^{\color{red}{3}}} = 27 \implies (2x-1)^{\color{red}{3}} = \frac{1}{27} \implies 2x-1 = \frac{1}{3}.$$