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More Lessons for Grade 9

Math Worksheets

Videos, worksheets, solutions, and activities to help Algebra 1 students learn how to solve systems of linear equations by substitution.

1. Rearrange one equation to represent x in terms of y.

2. Substitute this expression for x into the other equation to create an equation with only the variable y.

3. Solve this equation to find y.

4. Substitute y into either equation to find the value of x.

Solving Systems of Equation by Substitution

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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