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blondebaby42911 Group Title

If you were to use the elimination method to solve the following system, choose the new system of equations that would result after the variable z is eliminated in the first and second equations, then the second and third equations. x + y – 3z = –8 2x + 2y + z = 12 3x + y – z = –2

  • 2 years ago
  • 2 years ago

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  1. jimmyrep Group Title
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    multiply second by 3 and add to give 7x+7x = 28 add second and third 5x + 3y = 10

    • 2 years ago
  2. blondebaby42911 Group Title
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    These are the answer choices. so it would be the second choice right? 7x + 7y = 28 3x + y = –2 7x + 7y = 28 5x + 3y = 10 x + y = –8 3x + y = –2 x + y = –8 5x + 3y = 14

    • 2 years ago
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