(3x+8)+x>3x-12 can someone tell me how to solve it because already know the answer which is x>-20

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13-10-2015
Mathematics

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(3x+8)+x>3x-12 can someone tell me how to solve it because already know the answer which is x>-20

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Panoyin Panoyin · Answer 1 · 2015-10-13T03:05:29+02:00

Panoyin Panoyin

13-10-2015

(3x + 8) + x > 3x - 12
3x + x + 8 > 3x - 12
      4x + 8 > 3x - 12
      - 3x     - 3x
      x + 8 > -12
      - 8   - 8
      x > -20

Solution Set: (-∞, -20)

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