Logarithm help!

[NickThissen]

Please specify your question(s) more exact. What can we do with the first two equations? There isn't even any "=" sign so we can't solve it for x or anything...

As for the third, do you know that:

e^ln(x) = x
and
e^{ln(a) + ln(b)} = e^ln(a) * e^ln(b) = a * b
and
e^{ln(a) - ln(b)} = e^ln(a) / e^ln(b) = a / b

The same goes for log functions, just keep in mind that ln(x) = log_e(x)
So if you have a log₅ function instead of the ln function, you only have to replace the "e", which is the base of the ln function, by "5", which is the base for this particular log function (indicated by the subscript 5).

That will help you solve it. If not just ask.