Practice Objectives
- Demonstrate the ability to solve a system of linear equations using substitution
Practice Using the Substitution Method to Solve a Linear System
Instructions:
Answer 7/10 questions correctly to pass.
Solve each linear system using the substitution method.
Problem:
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The Substitution Method:
- Solve either equation for one of the variables
- Look for a variable with a coefficient of 1 or -1
- Substitute in for that variable in the other equation
- Solve the linear equation in one variable
- Substitute the known value into either original equation and solve for the other unknown
- Check the solution
Step-by-Step:
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$$x = $$
$$y = $$
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Video Lesson Written Lesson
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