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16 February, 00:17

Multiply out the bracket and simplify 3 (x+7) + 2x

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  1. 16 February, 02:56
    0
    Remember

    order of operaions and distributiv propery

    a (b+c) = ab+ac

    3 (x+7) + 2x

    multiply first (distribute)

    3 (x+7) = 3x+21

    3x+21+2x

    5x+21
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