Elliot has a total of 26 books. He has 12 more fiction books than nonfiction books. Let x represent the number of fiction books and y represent the number of nonfiction books. This system of equations models the number of books. x + y = 26 x – y = 12 Elliot added the two equations and the result was 2x = 38. Solve the equation. How many fiction books does Elliot have? 15 ⇒ 19 fiction books How many nonfiction books does Elliot have?