Solving Systems of Equations
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Objective
I can solve systems of two linear equations.
Part 1 of 4
Warm-up video
Khan Academy · 9:21Vetted channel
We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
The substitution method is an algebraic technique for solving systems of equations that provides an exact answer.
- 2
To use the substitution method, first solve one equation for one variable, then substitute that expression into the other equation.
- 3
After solving for one variable, substitute its value back into an equation to find the other variable, which gives the (x, y) pair that is the solution to the system.
Part 3 of 4
Practice
12 questions
What is a system of two linear equations?
What is the main goal when solving a system of two linear equations?
Part 4 of 4
Exit ticket
Quick comprehension check
“Solve the following system of equations using the substitution method. Show all steps. y = 3x + 2 2x + y = 17”
Sample answer included in the free materials
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