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12 February, 09:29

3/x-4=7/x

solve for x

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Answers (1)
  1. 12 February, 09:45
    0
    x=7

    Step-by-step explanation:

    3/x-4=7/x

    Using cross products

    3 * x = 7 (x-4)

    Distribute

    3x = 7x - 28

    Subtract 7x from each side

    3x-7x = 7x-7x-28

    -4x = - 28

    Divide each side by - 4

    -4x/-4 = - 28/-4

    x = 7
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