Understanding Variables, Constants, and Terms in Algebra

Algebraic Expressions

• A coefficient is a numerical value that multiplies a variable in an algebraic expression, often represented by a letter or symbol.
• The degree of a term refers to the exponent or power to which the variable is raised, indicating the number of times the variable is multiplied by itself.

Evaluating Expressions

• To evaluate an expression involving variables, substitute the given values of the variables into the expression, following the order of operations (PEMDAS: parentheses, exponents, multiplication and division, and addition and subtraction).
• Simplify the expression by combining any like terms, and perform any necessary calculations to arrive at the final result.

Test your knowledge of algebraic expressions, including variables, constants, terms, and coefficients. Learn how to evaluate expressions by replacing variables with specific numbers and carrying out the indicated operations.