The best thing to do is to break it down to very small parts.
You are dealing with a sum. The first phrase says
10 +
Never mind the rest of it for now. Just make sure you understand that you are adding 10 to something.
The next part of the question a quotient. You have to understand exactly what that means. If you divide 15 by three, you would write that as 15/3 The answer you get is 5. 5 is the quotient. It's a fancy way of saying answer.
Algebra isn't so nice. There is no way to get an answer when you do a division with a number and a letter. You have to be content with just showing how it is done.
So the next phrase is x divided by 6. And you show that as x/6
So what do you have? 10 + something which is where we left off. The something is x/6
Answer
10 + x/6