# Introduction to algebra

# Unlock your personalized study plan

Take a test to identify your areas for growth. We'll recommend lessons for exactly what you need to learn.

Lessons

Overview and history of algebraIntroduction to variablesSubstitution and evaluating expressionsEvaluating expressions word problemsWriting algebraic expressions introductionIntroduction to equivalent algebraic expressionsDependent & independent variablesCombining like termsInterpreting linear expressionsIrrational numbersSums and products of rational and irrational numbersProofs concerning irrational numbersDivision by zeroBinary and hexadecimal number systemsUnit testPractice

Unit test

Learn

Practice

Evaluating expressions with two variables

7 questions

Practice

Evaluating expressions with two variables: fractions & decimals

4 questions

Practice

Learn

Practice

Evaluating expressions with variables word problems

4 questions

Practice

Learn

Practice

Writing basic expressions with variables

7 questions

Practice

Writing expressions with variables

7 questions

Practice

Practice

Equivalent expressions

7 questions

Practice

Learn

Practice

Independent versus dependent variables

4 questions

Practice

Tables from equations with 2 variables

4 questions

Practice

Match equations to coordinates on a line

4 questions

Practice

Relationships between quantities in equations and graphs

4 questions

Practice

Learn

Practice

Combining like terms with negative coefficients

7 questions

Practice

Combining like terms with negative coefficients & distribution

4 questions

Practice

Combining like terms with rational coefficients

4 questions

Practice

Learn

Practice

Rational vs. irrational expressions

4 questions

Practice

Learn

Test your understanding of

**Introduction to algebra**with these 15 questions.About this unit

This topic covers:
- Evaluating algebraic expressions
- Manipulating algebraic expressions & equivalent expressions
- Seeing structure in expressions
- Irrational numbers
- Division by zero