Question

Solve the equation below for x. Round your answer to the nearest thousandth:
http://i.imgur.com/kKx9ALc.png
-2.738

-4.558

2.262

5.442

Answer 1

-2.738

Answer 2

First you can add the 2 to each side, so its \[12 = 3^{x+5}\]
Then take the log of both sides.\[\log 12 = \log 3^{x+5}\]
Because of log rules, that's equivalent to \[\log12 = (x+5)*\log3\]
Then just solve for x.\[x = \frac{ \log 12 }{ \log 3 } - 5\]
It doesn't matter what base the logarithm is

Answer 3

so it's a?