How do you solve 5x=71?

1 Answer
Feb 26, 2016

x=log5(71)

Explanation:

We will be using the following properties of logarithms:

  • log(ax)=xlog(a)

  • loga(a)=1

Then, to solve, we simply take the base-5 logarithm of each side of the equation.

5x=71

log5(5x)=log5(71)

xlog5(5)=log5(71)

x1=log5(71)

x=log5(71)