Question

How do you solve `\frac { n + 2} { n + 8} = \frac { 9} { 8}`?

Answer 1

Use cross-multiplication. `n=-56`.

Explanation:

Cross-multiply:

`(n+2)(8) = (9)(n+8)`

`8n+16=9n+72`

`16-72=9n-8n`

`-56=n`