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12 May, 18:52

3y - 6y + 18 = 8 + 3y - 20

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  1. 12 May, 19:50
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    y = 5

    Step-by-step explanation:

    3y - 6y + 18 = 8 + 3y - 20

    in order to simplify this expression we need to consider the positive and negative signs carefully and diligently collect the like terms.

    3y - 6y + 18 = 8 + 3y - 20

    3y - 6y + 18 + 20 = 8 + 3y

    3y - 6y + 38 - 8 = 3y

    38-8 = 3y - 3y + 6y

    30 = 6y

    divide both sides by 6

    30/6 = 6y/6

    5 = y

    therefore y = 5
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