Lesson 7 — Understanding Algebra


Sometimes we need to be able to solve a problem to find out an unknown amount. One way to do this is to use algebra. Algebra is where a letter is used to represent the unknown amount. In this lesson, you will learn how to solve simple equations using algebra.


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In this lesson, you will:


  • learn how to use algebra to solve problems


Key Terms for this lesson:

  • algebra
  • variable
  • constant
  • simple substitution