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5 June, 06:33

Let v=6i + 9j, and w = - i - 2j. Find 7w + 6v.

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  1. 5 June, 08:55
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    Step-by-step explanation:

    7w + 6v

    = 7 (6i + 9j) + 6 (-I - 2j)

    = 42i + 63j - 6i - 12j

    = 36i - 51j

    = 3 (12i - 17j)
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