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Proving that two equations are equal

This is a question from a past exam paper for entrance onto a degree course. Whilst I am sure that the question is not that difficult, I do have real problems with this type of question. I am not sure how to get started with part (a) so could you please list every step as simply as possible when solving the problem.

On part (b) (1) I have an answer although I am struggeling with finding what x is equal to in (2).

Could you also explain how to go about putting my answer in compound fractions?! and Integer?!

Any help is greatly appreciated


Solution Preview

Please see the attached file.

I am not too sure about domains or why there is no answer to (b) (1) could you explain? ...