How to Solve a System of Equations by Substitution


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question 1 of 3

Solve for x.

y = 2x - 1

x + y = 8

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Solve for y.

y = 2x - 1

x + y = 8

2. A system of equations has how many equations?

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About This Quiz & Worksheet

Learn what you know about substitution and systems of equations with this quiz and worksheet. For the quiz, you'll need to solve for x and y.

Quiz & Worksheet Goals

Use these tools to:

  • Identify how many equations there are in a system of equations
  • Use the substitution method
  • Solve a system of equations

Skills Practiced

Practice the following study skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on substitution and systems of equations
  • Critical thinking - apply relevant concepts to examine information about a system of equations
  • Interpreting information - verify that you can read information regarding the substitution method and interpret it correctly

Additional Learning

Find out more about this subject with this lesson called How to Solve a System of Equations by Substitution. The lesson will cover the following:

  • Define substitution method
  • Analyze how to use a system of equations
  • Solve for variables