Use several skills to solve word problems leading to systems of equations. Scholars define variables and write equations to model situations described within word problems. Pupils solve the resulting system of linear equations using either substitution or elimination methods. 

Concepts

systems of equations, systems of linear equations, system of equations word problems, writing equations, word problems

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Additional Tags

math

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Instructional Ideas

• Provide a discussion on how the defining the variables may affect the equations but not the final solution

Classroom Considerations

• The class should be familiar with writing linear equations from verbal descriptions
• Requires the ability to solve systems of linear equations
• The lesson is part 30 in a 33-part series

Pros

• Lesson plan provides guidance to the teacher on how to approach the example problems
• Problems incorporate previously learned math concepts

Cons

• None

Common Core

8.EE.C.8.a 8.EE.C.8.c MP4