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

Jul 17, 2016

$n = 36$

#### Explanation:

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

$\frac{n - 8}{n} = \frac{7}{9}$

$9 \times \left(n - 8\right) = 7 \times n$

$9 n - 72 = 7 n$

$2 n = 72$

$n = 36$