Solving Systems of Equations by Substitution

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Objective

I can use substitution to solve systems of equations and check if my solution is correct.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel 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 3

Practice

2 questions

1

Solve the following system of equations using substitution: y = 3x - 2 4x + y = 12

2

You are trying to solve a system of equations where neither equation is initially solved for a single variable. The equations are: 2x + y = 7 x - y = 2 Explain the steps you would take to solve this system using substitution. What would you do first, and why?

Part 3 of 3

Exit ticket

Quick comprehension check

Solve the following system of equations using substitution: y = x + 2 y = 3x - 4 Solve the following system of equations using substitution: y = 2x + 1 y = x + 5 Solve the following system of equations using substitution: y = 4x - 3 y = -x + 7

Sample answer included in the free materials

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