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9 February, 19:00

Is u = - 1/2 a solution of 8u - 1 = 6u

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Answers (2)
  1. 9 February, 19:42
    0
    Answer: No.

    Step-by-step explanation: Sub - 1/2 in for u in the equation:

    8 (-1/2) - 1 = 6 (-1/2)

    =-4-1 = - 3

    =

    -5=-3 which is false, so it is not a solution
  2. 9 February, 20:15
    0
    No

    Step-by-step explanation:

    Plugging in - 1/2 for u:

    8 (-1/2) - 1 = 6 (-1/2)

    -4 - 1 = - 3

    -5 = - 3 ... these are not equal
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