Solve the following equation:
Answer:
I don't know what to do with the 15!!!
Help me? Pretty pleaseeee?
Thank you very much!!
You don't need logarithms. It should be obvious that if $\displaystyle 2^x= 2$ then x= 1. (You do need to know that $\displaystyle y= a^x$, for a positive, is a "one-to-one function" to know that x= 1 is the only solution.