Question

ln a + ln x/3= 5, how do I solve for x?

Answer 1

presumably your answer will have an "a" in it yes?

Answer 2

is it
\[\ln(x)+\ln(\frac{x}{3})=5\] or
\[\ln(a)+\ln(\frac{x}{3})=5\] ?

Answer 3

if it is the second one then write
\[\ln(\frac{ax}{3})=5\] so
\[\frac{ax}{3}=e^5\] and then
\[x=\frac{3e^5}{a}\]