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    Question

    Simplify: 6x + 8y - [(12x + 6y) - (4x + 3y) + 2y]

    - 4x
    A 3y - 8x Correct Answer Incorrect Answer
    B y - 6x Correct Answer Incorrect Answer
    C y - 10x Correct Answer Incorrect Answer
    D -6x + 3y Correct Answer Incorrect Answer

    Solution

    6x + 8y - [(12x + 6y) - (4x + 3y) + 2y] - 4x
    = 6x + 8y - [12x + 6y - 4x - 3y + 2y] - 4x
    = 6x + 8y - [8x + 5y] - 4x
    = 6x + 8y - 8x - 5y - 4x
    = -6x + 3y

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