SOLUTION: lg x + ln 2x = 3 solve for x. thank you

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: lg x + ln 2x = 3 solve for x. thank you      Log On


   



Question 553714: lg x + ln 2x = 3
solve for x.
thank you

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
ln x + ln 2x = 3
---
ln(x*2x) = 3
--
ln(3x^2) = 3
----
3x^2 = e^3
x^2 = e^3/3
----
x = 6.6952
==============
Cheers,
Stan H.
==============