# How do you solve #3-((a-1)/(a+3)) = ((a^2-5)/(a+3))#?

##### 1 Answer

Multiply both sides by

#### Explanation:

The denominator is the same for both fractions in the equation. We can use this to our advantage by multiplying both sides by the denominator to 'clear' it from our equation:

Now that we've 'cleared' the denominators from the equation, we simplify all the terms:

Now, we have a quadratic equation with the following coefficients:

I wrote the equation using

EDIT: Updating results

Finally, we'll plug the solutions for

When

Since we have a solution where there's division by zero, this solution is considered *extraneous*, making it invalid for this question.

When

This means that the positive root is valid, and gives us our final answer: