# How do you solve e^ { \ln x } = 21?

Apr 17, 2018

x=21, e ${e}^{\ln x} = x$

#### Explanation:

x=21, e ${e}^{\ln x} = x$ by the rules of logarithms and exponential funcs

Apr 17, 2018

$x = 21$
Given: ${e}^{\ln x} = 21$
Notice that ${e}^{\ln x} = x$.
So, we get: $x = 21$