Adding and subtracting linear expressions is a fundamental algebraic concept that helps students understand how to manipulate mathematical expressions. This guide covers the basics of working with linear expressions, including combining like terms and solving word problems involving buying and selling.
• Linear expressions are algebraic expressions where variables have an exponent of 1
• The guide demonstrates how to add and subtract expressions using the commutative and associative properties
• Examples include working with variables, integers, and real-world applications
• Word problems show practical applications in business scenarios with price calculations
• Step-by-step solutions are provided for better understanding
