Question

subtract and write the answer in simpleast form: (9x)/(3x-4)-(12)/(3x-4)

Answer 1

(9x - 12) / (3x - 4)
= 3(3x - 4) / (3x - 4) = 3

Answer 2

What rule do I use to do this kind of subtraction problem?
\[3/5 - 1/5\]

It's the same rule for the problem you're working on, since the denominators are the same. Once you've used that rule, factor and cancel terms.