# Systems of Linear Equations in Three Variables

## Solve multiple equations by evaluating them in pairs

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Solving Linear Systems in Three Variables

This lesson covers solving a system of equations in three variables (x, y, and z).
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## Systems of Three Equations and Three Unknowns

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• PLIX

## Linear Systems with Addition or Subtraction: xyz Tiles

Systems of Linear Equations in Three Variables Interactive
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## Systems of Linear Equations in Three Variables: Intersecting Planes - No Solution

Systems of Linear Equations in Three Variables Interactive
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