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26 November, 14:00

If jl = 10x-2 JK = 5x-8 and KL = 7x-12 find KL

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  1. 26 November, 17:32
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    JK+KL=JL

    (5x-8) + 7x-12=10x-2

    (add common terms together)

    12x-20=10x-2

    (get the term with x alone on one side of the equation)

    2x=18

    (divide by 2 to get x alone)

    x=9

    Find KL:

    KL=7 (9) - 12

    KL=51
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