Question

How do you solve `(p+10)/(p-7)=8/9`?

Answer 1

`p= -146`

Explanation:

If you have an equation with ONE fraction on each side, you can get rid of the fractions by cross-multiplying.

`(p+10)/(p-7)= 8/9`

`9(p+10) = 8(p-7) " " larr " No fractions!"`

`9p +90 = 8p-56`

`9p-8p = -56-90`

`p = -146`