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10 April, 09:29

Solve the problem, 3 (x-7) = 9. Show all of your work.

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Answers (2)
  1. 10 April, 09:46
    0
    First you would distribute. 3 times x and 3 times negative 7. Then you would add negative 21 to 9 to get 30. Then you divide 3x from 30 to get 10.

    So the answer is 10
  2. 10 April, 09:55
    0
    3 (x - 7) = 9

    (3 * x) - (3 * 7) = 9

    3x - 21 = 9

    3x - 21 + 21 = 9 + 21

    3x = 30

    3x/3 = 30/3

    x = 10

    3 (10 - 7) = 9

    (3 * 10) - (3 * 7) = 9

    30 - 21 = 9

    9 = 9
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