3.1 Introduction Algebrac expressions are a crucial branch of mathematics. An expression is a combination of numbers'corstant (whole or fractions), variables (letters of the alphabet) and mathematical operations. This chapter discusses in detail, the concept of terms, like terms, ccefficients, etc. It extends to converting expressions into equations and solving these equations for the unknown vartable usin the method of transposition. The idea of solving simultaneous equations (two equations in two unknowns) is also discussed. These concepts are applied to problem solving.

Did you know that algebra has roots dating back thousands of years to ancient civilizations? The Babylonians were among the first to use algebraic methods for solving problems, and their tablets from around 2000 BC show early forms of equations! Fast forward a few centuries, and we see the brilliance of Islamic mathematicians like Al-Khwarizmi, whose work laid the groundwork for modern algebra. In the real world, algebra isn’t just confined to classrooms. It’s the backbone of many professions - from engineers calculating load and stress to economists modeling market behavior. Every time you see a calculation for budgeting or project planning, you’re witnessing algebra at work! Who knew that balancing your checkbook involves the elegant art of algebra?