Question

How do you solve `(n-8)/n=7/9`?

Answer 1

`n = 36`

Explanation:

The fact that there is an equation with one fraction on each side means we can cross multiply.

`(n-8)/n=7/9`

`9xx(n-8) = 7xxn`

`9n - 72 = 7n`

`2n = 72`

`n = 36`