How do you solve #(n-9)/(n+5)=7/4#?
See a solution process below:
First, cross multiply the equation:
Now, divide each side of the equation by
In this equation there is one fraction on each side. The easiest method is to cross multiply. (See below for why it works).
To get rid of the denominators, multiply both sides by the LCM of the denominators, which is
This leaves you with:
Which is exactly the result from cross-multiplying.