The Answer To This Problem is: C.-4
Yes, you need to make the denominators the same. 2/3 becomes 8/12. So now you add 7/12 and 8/12, getting 15/12. But you're not done you need to simplify 15/12. The answer is 1 1/4.
Answer:
All real numbers except x=-7
Step-by-step explanation:
Since
is a discontinuity in the rational function, this makes the denominator equal to 0.