It's supposed to be 2^(11), but don't know how to do it(Speechless)

such that

Find x using Fermat's Little Theorem.

Here is what I have done:

Since 3 is prime, it follows that by FLT and since .

So, multiply both sides by we get

It is here I'm not sure what to do since not sure how to get something , or how to isolate the x really.

Thanks