Question

How do you solve `5^d*5^3=5^9`?

Answer 1

`d=6`

Explanation:

We can do it this way - by dividing by `5^3`:

`5^d xx 5^3=5^9`

`(5^d xx 5^3) / 5^3=5^9 / 5^3`

`5^d=5^(9-3)=5^6`

`d=6`