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Answer :

  • 12 + x ≥ 3 (x - 6)
  • or, 12 + x ≥ 3x - 18
  • or, 12 + 18 ≥ 3x - x
  • or, 30 ≥ 2x
  • or, 30/2 ≥ x
  • or, 15 ≥ x
  • or, x ≤ 15

Answer:

x 15

Hope you could get an idea from here.

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