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17 July, 06:19

If (x - 1) / x = 20, then x =

O a. - 21

O b.-19

c. - 1/19

O d.-1/21

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Answers (1)
  1. 17 July, 06:23
    0
    -1/19 = x

    Step-by-step explanation:

    (x - 1) / x = 20

    Multiply each side by x

    (x - 1) / x * x = 20*x

    x-1 = 20x

    Subtract x from each side

    x-1-x = 20x-x

    -1 = 19x

    Divide each side by 19

    -1/19 = x
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