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16 December, 05:29

Is r = - 1 a solution to the equation 6 (r - 4) = 30r

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Answers (2)
  1. 16 December, 05:56
    0
    You can try to insert r=-1:

    6 (-1-4) = 30*-1

    -6-24=-30

    -30=-30

    So, yes r = - 1 is a solution to the equation.
  2. 16 December, 08:57
    0
    6 (-1 - 4) = 30 (-1)

    6 (-5) = - 30

    -30 = - 30

    so - 1 is a solution
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