Hi !

Ok, we have :

Let , so we have :

What is the common denominator ?

In one side, we have 3k and in the other side, 3.

So the common denominator is

To make such a thing, we will have to multiply the fraction on the right side by so that we will have 3k at the bottom.

But what is ?

A rule of exponents tells us :

Therefore

--->

Is it clear enough ? :x