5^(4-x)=1/5 Process for solving

[Monocerotis]

Homework Statement

5^4-x = 1/5

How would I go about solving a problem like this up until now I haven't had to deal with fractions on either side of an equation

Homework Equations

The Attempt at a Solution

 

[Mark44]

You can rewrite this as 5^{4 - x} = 5^-1.

You can use the idea that if a^x = a^y, then x = y.