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For what value of does the pair of equations and have infinitely many solutions?

Competition practiceAlgebra
  • A5
  • B3
  • C4
  • D7

Step-by-Step Solution

For infinitely many solutions, 2/(k−1) = 3/6 = 7/14 = 1/2. So 2/(k−1) = 1/2 ⇒ k − 1 = 4 ⇒ k = 5.
Answer: A) 5

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