Question

Nine times a number added to the sum of the number and one

Answer 1

9n + n+1 should be your answer

Answer 2

I will write out the numerical form as I rewrite the word form to help you understand easier.
Nine times (9x) a number added to the sum of the number and one (n + (n+1)).
Now write without the words.
9n + (n+1) is your expression.
I hope this helps!