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Unknown Type
Khan Academy

Khan Academy: Algebra: Equivalent Systems of Equations

For Students 9th - 10th Standards
Determine whether a couple of given systems of equations are equivalent or not to a third given system. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Algebra I: Equivalent Systems of Equations Review

For Students 9th - 10th Standards
Two systems of equations are equivalent if they have the same solution(s). This article reviews how to tell if two systems are equivalent. Examples are provided.