Practice Addition and subtraction of algebraic expressions - 1 Get 3 of 4 questions to level up!

Solving equations Learn Worked example: two-step equations Equations with parentheses

Unit 11: Algebraic expressions 1,200 possible mastery points Mastered Proficient

Practice Multiply & divide rational expressions (advanced) Get 3 of 4 questions to level up!

To write simple algebraic expressions from mathematical statements, you can follow this procedure: 1. Identify the key terms in the written statement (e.g. "sum," "product," "quantity").

Learn Evaluating expressions with variables: temperature Example: Evaluating expressions with 2 variables

Learn to write algebraic expressions with Khan Academy's step-by-step lessons and practice exercises.

Why do we have math if we can describe things in words? Algebraic expressions are useful because they represent the value of an expression for all of the values a variable can take on.

By replacing variables with their corresponding values, we can easily compute the result of expressions, even for more complex examples with multiple terms and operations.

With the knowledge of algebraic laws, we may recognize structures, or the relationship between algebraic expressions. For example, just as we recognize that 2 x is 2 times x , we might recognize …