Question

How do you solve `e^(5-9 x)=990`?

Answer 1

`x=(5-ln 990)/9`.

Explanation:

If `e^m=n`, inversely, m = ln n

Here, `e^(5-9x)=990`. `m=5-9x, n=990`.

Inversely, `5-9x=ln 990`.

`9x = 5-ln 990`.

`x=(5-ln 990)/9`.