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16 September, 09:11

Find all real numbers x such that

4x + 2 > 14 and - 21x + 1 < 22

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Answers (1)
  1. 16 September, 10:51
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    First solve for x:

    4x+2>14

    subtract 2 from both sides

    4x>12

    divide by 4 and x=3

    -21x + 1<22

    subtract 1 from both sides

    -21x <21

    divide by - 21 on both sides

    x=-1
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