$ 0 0 Lesson 1 - 4.1 Solving Simple EquationsLesson 2 - 4.2 Solving Equations with BracketsLesson 3 - 4.3 Solving Equations with FractionsHomework Assignment SolutionsLesson 4 - 4.4 Modelling with FormulasLesson 5 - 4.5 Modelling with Algebrasome 4.5 homework solutionsReview homework QuestionsMultiple Choice Review Answers