Question

How do you solve `ln5+ln(4-5x)=3`?

Answer 1

`x = [20 - e^3]/25`

Explanation:

We have `ln 5 + ln (4 - 5x) = 3`

Using addition property of logarithms,

`implies ln [5*(4 - 5x)] = 3`
`implies 5*(4 - 5x) = e^3`
`implies 20 - 25x = e^3`
`implies x = [20 - e^3]/25`