Delve into expressions and equations with our comprehensive guide, tailored for SAT, ACT, and EST exam preparation. Deepen your understanding and proficiency in this fundamental area of mathematics, exploring the building blocks of algebraic expressions, equations, and inequalities. Learn essential problem-solving strategies and techniques, uncovering the significance of variables, coefficients, and constants in mathematical expressions. Discover how to manipulate and solve equations confidently, covering linear and quadratic equations, systems of equations, and inequalities. With a focus on diverse problem types and real-world applications, our guide equips you for success in academic and professional endeavors. Whether you're a student aiming for exam excellence or a professional seeking mathematical proficiency, our guide prepares you to tackle expressions and equations with confidence.