# How to Solve a System of Equations by Substitution

Instructions:

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question 1 of 3

### Solve for x. y = 2x - 1 x + y = 8

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### 2. A system of equations has how many equations?

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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

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
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