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# CCSS.Math.Content.HSA.REI.C.6 - Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables.

Authors: National Governors Association Center for Best Practices, Council of Chief State School Officers

Title: CCSS.Math.Content.HSA.REI.C.6 Solve Systems Of Linear Equations Exactly And Approximately... Reasoning with Equations & Inequalities - High School Algebra Mathematics Common Core State Standards

Publisher: National Governors Association Center for Best Practices, Council of Chief State School Officers, Washington D.C.

(Page last edited 10/08/2017)

1. Algebra review - Solve systems of linear equations
2. Solve Systems of Linear Equations Exactly and Approximately - Solving a system of linear equations means finding the point at which the two (or more) lines intersect. This happens when the same set of x and y values satisfy all the linear equations in the system. Students should be shown that a system of linear equations can be solved either through graphs or straight algebra, but that these two methods arrive at the same answer because they mean the same thing. The goal is to find the point at which the two lines intersect. A quiz is provided.
3. Systems of equations - Solve a system of equations using substitution: word problems
4. Systems of equations - Solve a system of equations using any method: word problems
5. Systems of equations: Elimination - Solve a system of equations using elimination: word problems
6. Systems of equations: Graphing - Solve a system of equations by graphing: word problems
7. Systems of linear equations - Solve a system of equations using augmented matrices: word problems
8. Systems of linear equations: Any method - Solve a system of equations using any method: word problems
9. Systems of linear equations: Elimination - Solve a system of equations using elimination: word problems
10. Systems of linear equations: Graphing - Solve a system of equations by graphing: word problems
11. Systems of linear equations: Substitution - Solve a system of equations using substitution: word problems Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles. 