Hi all,

I have returned to maths after a break of five years. Although I was quite good at it in school, I studied a non-technical subject at university and I have lost nearly all my mathematical ability.

I encountered this problem while attempting to revise logarithms:

Use logarithms to solve the following equation:

I attempted to solve it as follows:

This is not the correct answer. I would be grateful if somebody told me where I am going wrong.

Regards,

Evanator