Topics
3. Systems of Linear Equations and Inequalities
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United States of America
Grades 9-12

3.03 Solving systems using elimination

Lesson
Practice
Adaptive
Worksheet

Interactive practice questions

We are going to use the elimination method to solve the following set of equations.

Equation 1 $7x+y=49$7x+y=49
Equation 2 $3x+y=25$3x+y=25
a

First solve for the value of $x$x

b

Now find the value of $y$y

Medium
3min

We are going to use the elimination method to solve the following set of equations.

Medium
3min

We are going to use the elimination method to solve the following set of equations.

Medium
3min

We are going to use the elimination method to solve the following set of equations.

Medium
3min
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Outcomes

A.CED.A.3

Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context.

A.REI.C.5

Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.

A.REI.C.6

Solve systems of linear equations exactly and approximately (e.g. With graphs), focusing on pairs of linear equations in two variables.

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