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İn the system equations above, n is a constant. İf the system has no solution, what is the value of n

nx+3y=6
12x-6y=0


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User BSQ
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1 Answer

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14 votes

Answer:

  • n = - 6

Explanation:

Given is the system of linear equations:

  • nx + 3y = 6
  • 12x - 6y = 0

Convert both equations into slope intercept form:

  • nx + 3y = 6 ⇒ 3y = - nx + 6 ⇒ y = - 1/3nx + 2
  • 12x - 6y = 0 ⇒ 6y = 12x ⇒ y = 2x

The system has no solution if lines have equal slopes with different y-intercepts:

  • -1/3n = 2
  • n = - 6
User Bshields
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