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25 June, 16:05

1/4 k = 3 (-1/4 k + 3)

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  1. 25 June, 18:21
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    Simplify 1/4k to k/4

    k/4 = 3 (-k/4 + 3)

    Regroup terms

    k/4 = 3 (3 - k/4)

    Multiply both sides by 4

    k = 12 (3 - k/4)

    Expand

    k = 36 - 3k

    Add 3k to both sides

    k + 3k = 36

    Simplify k + 3k to 4k

    4k = 36

    Divide both sides by 4

    k = 36/4

    Simplify 36/4 to 9

    k = 9
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