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Quiz: Solving Systems of Equations (Simultaneous Equations)

To solve for x in the system of equations given, which one of the described steps could be used in the addition/subtraction method?

equation

  • multiply equation I by 3, then subtract equation II from the new equation I
  • multiply equation I by 2, then add equation II with the new equation I
  • multiply equation I by 2, then subtract equation II from the new equation I
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