Question

Isabella purchased 3 books from the book store. She now owns 11 books that she wants to read before the end of the year. If x represents the number of books she started with, which equation could be used to determine the value of x?

Answer 1

I'm not too sure on the answer choices you have but I'd say the equation is either
x = 11 - 3
or
x + 3 = 11

Answer 2

11-3=x is the answer