# How do you solve lnx=4?

Dec 14, 2015

The answer is $x = {e}^{4}$

#### Explanation:

In general if you have an equation like:

${\log}_{a} x = b$

then the answer is $x = {a}^{b}$

${\log}_{a} x$ is a number $b$ to which $a$ must be raised to get the result $x$.