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13 November, 22:04

3 х + 5 (1 + 7x) = 3 х - 30

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Answers (2)
  1. 13 November, 22:22
    0
    3x + (5+35x) = 3x - 30

    38x + 5 = 3x - 30

    38x = 3x - 35

    35x = - 35

    x = - 1
  2. 14 November, 00:29
    0
    Answer:-1

    Step-by-step explanation:

    3x+5 (1+7x) = 3x-30

    Open bracket

    3x+5+35x=3x-302

    Collect like terms

    3x+35x-3x=-30-5

    35x=-35

    Divide both sides by 35

    35x:35=-35:35

    X=-1
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