Ch 6: Expressions & Equations in Algebra

About This Chapter

Explore the material in this chapter to gain knowledge about expressions and equations in algebra. As you progress through this chapter, your skills at working with different expressions and equations could grow.

Expressions & Equations in Algebra - Chapter Summary

Moving through this chapter, you will examine different expressions. Some of these include simple algebraic expressions. You'll also have the chance to develop your skills at combining like terms.

Once you get near the end of the chapter, equations start becoming the focal point. After studying every lesson, you should have the ability to:

  • Define variable
  • Express algebraic relationships
  • Evaluate simple algebraic expressions
  • Collect like terms on one side of an equation
  • Solve equations using multiplication and addition
  • Work with equations that have parentheses
  • Change words to algebraic expressions
  • Solve word problems and multi-step equations

Video lessons are engaging and come with self-assessment quizzes. Use these quizzes to gauge your knowledge and skills regarding equations and expressions. If you get stumped with a principle or topic, get help from an online instructor. There are also lesson transcripts that you'll have access to, and they contain highlighted key math terms.

9 Lessons in Chapter 6: Expressions & Equations in Algebra
Test your knowledge with a 30-question chapter practice test
What is a Variable in Algebra?

1. What is a Variable in Algebra?

Did you ever encounter something like a + b = c and wonder how all these letters snuck into a math problem? In this lesson, we'll learn about variables, as well as other parts of equations, constants and coefficients.

Expressing Relationships as Algebraic Expressions

2. Expressing Relationships as Algebraic Expressions

What do you do when you don't know what a number is but you do know how it relates to something else? You use an algebraic expression. In this lesson, we'll learn how to express relationships as algebraic expressions.

Evaluating Simple Algebraic Expressions

3. Evaluating Simple Algebraic Expressions

In this lesson, we'll learn how to evaluate algebraic expressions, which involves substituting numbers for variables and following the order of operations. By the end of the lesson, you'll be an algebraic expression expert.

Combining Like Terms in Algebraic Expressions

4. Combining Like Terms in Algebraic Expressions

When you have an algebraic expression that's much too long, it would be great if you could simplify it. That's when knowing how to combine like terms comes in. In this lesson, we'll learn the process of combining like terms and practice simplifying expressions.

Collecting Like Terms On One Side of an Equation

5. Collecting Like Terms On One Side of an Equation

When you are using algebra to solve your problems, one of your biggest and most often used methods is that of collecting like terms. Watch this video lesson to see how it is done.

Solving Equations Using Both Addition and Multiplication Principles

6. Solving Equations Using Both Addition and Multiplication Principles

Most times in algebra, to solve for your variable, you will need to perform more than one operation to get your answer. Watch this video lesson to learn the proper steps to take to solve these equations.

Solving Equations Containing Parentheses

7. Solving Equations Containing Parentheses

When we have parentheses in our equations it changes the way we solve them. Now we have an added step to do to remove those parentheses. Watch this video lesson to learn how it is done.

Translating Words to Algebraic Expressions

8. Translating Words to Algebraic Expressions

When it comes to word problems, the easiest way to solve them is to look for keywords and change them into math symbols. Watch this video lesson to find out what keywords you should look for and what math symbols they represent.

How to Solve Multi-Step Algebra Equations in Word Problems

9. How to Solve Multi-Step Algebra Equations in Word Problems

After watching this video lesson, you will be able to solve word problems like a pro. Learn how to setup your problem, write your equations and then solve your equations to find your answer.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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