Okay so for exponential and logarithmic equations I'm totally stuck on how to solve for x on this one. 23^x = 15

Question

anonymous · Answer

http://www.wolframalpha.com/input/?i=23%5Ex+%3D+15+solve+for+x&dataset= Does this help you?

anonymous · Answer

Hmm I think it's on the right path but I'm not exactly sure what it's saying. I probably should have given the options for answers.
A. 1.565
B. 2.678
C. 3.187
D. 1.302

anonymous · Answer

I'm sorry I've been working on this for half an hour so my brain's a little fried.

anonymous · Answer

That's okay! None of those answers will give you 15. X will need to roughly equal 0.86 in order to bring you to 15.

wolf1728 · Answer

23^x = 15 taking logs of both sides
x * log 23 = log 15
x = log 15 / log 23
enough of a start for you?

anonymous · Answer

@wolf1728 see that was the first thing I did, but the answer is 0.86, which again is not one of the options. That's why I'm totally confused.

anonymous · Answer

Perhaps explain to your teacher/tutor/mentor (whoever it may be) that you've done all necessary steps but cannot reach one of the supplied answers?

wolf1728 · Answer

The answer is 0.8636757125
because 23^0.8636757125 = 15

wolf1728 · Answer

Are you sure of the exact numbers in the problem?
Could it be 2.3^x = 15 for example?