Respuesta :

k = -3

Step-by-step explanation:

2x + y - 7 = 0

2x + y + k - 7 = 0

10 + k - 7 = 0

3 + k = 0

k = -3

Answer:

k = -17

Step-by-step explanation:

Substitute the solution (5, k) into the equation :

  • 2x + y = -7 = 0
  • 2x + y + 7 = 0
  • 2(5) + k + 7 = 0
  • 17 + k = 0
  • k = -17

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