In your first draft you need to include the introduction or the opening of the essay. You also need several topics that will make the reader more interested in your essay. With these improvements the reader will stay tense and will want read the whoole story.
Just watch this video it will help https://www.khanacademy.org/math/algebra/introduction-to-algebra/alg1-manipulating-expressions/v/combining-like-terms-and-the-distributive-property
