THANKYOU
No, in the book it did not have brackets
what I did wrong was write down 5 as a positive instead of a negative and ended up with 2p=63
I have another question then though... when a fraction has a negative in front of it e.g. like in this equation ---> -2p+1 / 4 , doesn't this make the whole fraction negative including the 4 at the bottom that you multiply the other fraction by :s