Solving Subtraction Equations with Two or More Variables


Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

If a problem has four variables, how many equations will it have?

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1. Which of the following has the appropriate number of equations to variables?


Solve for y.

x - y = 1

3x - y = 5

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About This Quiz & Worksheet

This interactive quiz and worksheet combo can be used at any time to challenge your knowledge of multi-variable equations using subtraction.

Quiz & Worksheet Goals

Topics included in this quiz will be:

  • Solving an equation to find multiple missing variables
  • Identifying examples of the appropriate number of equations to variables
  • Deciphering the number of equations that will be needed

Skills Practiced

Practice these skills while using this interactive quiz and worksheet:

  • Interpreting information - study a given problem and recognize an example that has the appropriate number of equations per the number of unknown variables
  • Problem solving - solve an equation to find undefined variables
  • Critical thinking - apply the tactics in the lesson to find the value of multiple variables within an equation

Additional Learning

Explore the lesson entitled Solving Subtraction Equations with Two or More Variables to further examine the strategies needed to solve these numerical problems. This lesson will discuss:

  • Finding the first solution to a multi-variable equation
  • Writing equations that have the appropriate numbers of variables
  • Solving for the subsequent missing variables after finding the first