Isolate and substitute for one variable to solve systems of equations in two variables.
This lesson covers solving a system of linear equations using substitution.
It’s Christmas time and your dad asks you to go buy some Christmas trees and holly berries to celebrate the season. He says he wants 3 times more trees than holly berries. He also tells you that the number of berries plus 6 should equal the number of trees he wants. Experiment by dragging trees and holly berries to your dad’s house until you find the correct numbers to satisfy his requirements.
Solves equations by substitution.
This video provides an explanation of the concept of solving linear systems by substitution.
Practice Systems Using Substitution questions
A list of student-submitted discussion questions for Systems Using Substitution.
To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.
Come up with questions about a topic and learn new vocabulary words to determine answers using an Ask, Answer, Learn table.
Summarize the main idea of a reading, create visual aids, and come up with new questions using a Four Square Concept Matrix.
With the KWL chart, reflect on your prior knowledge, ask questions that you are curious about,and come up with answers from the reading.
All students will be able to research two different cell phone companies and determine which cell phone plan is the cheapest using systems of linear equations. Students will represent these relationships through equations, tables and graphs.
Learn how to use a system of linear equations to calculate federal and state taxes.
Learn how to use a system of equations to determine which of two cell phone plans is a better deal.
This study guide looks at systems of linear equations and how to solve them by graphing and by substitution. It also looks at the types/number of solutions to systems of linear equations.