Fix the AI's math mistake and explain why 練習問題Solve the equation 3x + 5 = 14. Learning path / Course list / Math Test Grade 4 Prep Previous and next lessons in this course Previous lesson: Math Test Grade 4: 5-question challenge Next lesson: Math Test Grade 4: step up Math Test Grade 4 Prep: related lessons Math Test Grade 4: step up Math Test Grade 4: 5-question challenge Fix the AI's math mistake and explain why