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28 November, 20:46

3. 2x + 3 + 4 = 7 + 5x

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Answers (2)
  1. 28 November, 20:55
    0
    2x + 3 + 4 = 7 + 5x

    2x+7 = 7+5x

    Move 5x to the other side

    Sign changes from + 5x to - 5x

    2x-5x+7 = 7+5x-5x

    2x-5x+7 = 7

    3x+7 = 7

    Move + 7 to the other side

    Sign changes from + 7 to - 7

    3x+7-7 = 7-7

    3x = 7-7

    3x = 0

    Divide both sides by 3

    3x/3 = 0/3

    Answer: x = 0
  2. 28 November, 20:58
    0
    x = 0.

    2x + 7 = 7 + 5x

    7 = 7 + 3x

    0 = 3x

    x = 0
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