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Lesson 7.1

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Lesson 7.1

  1. 1. Chapter 7 Linear Systems •A system of equations is a set of two or more equations that use the same variables. 2 x − y + z = 4  A brace is y = x + 3  x + 3 y − z = 11 used to keep  4 x + y − z = 14   y = −2 x + 3 the equations of a system together.•If the graph of each equation in a system of two variablesis a line then the system is a linear system.
  2. 2. Chapter 7 Linear Systems They can Coinciding Parallel lines intersect. lines, the same line.One solution Infinite solution No solution. Consistent Consistent InconsistentIndependent Dependent

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