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9 December, 05:47

If lk = mk. lk = 7x-10. x + 3. min = 9x-11 and kj = 28 find lj

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  1. 9 December, 09:30
    0
    LJ = 46

    Step-by-step explanation:

    Suppose J, K, L, M, N are on same line

    And

    MK = MN + (-KN)

    MK = MN-KN

    MK = 9x-11 - (x+3)

    MK=9x-11-x-3

    MK = 8x-14

    Now we have given that LK=MK

    and LK = 7x-10

    So,

    LK=MK

    7x-10 = 8x-14

    Combine the like terms:

    7x-8x = - 14+10

    -x = - 4

    x=4

    LJ = MK + KJ

    MK=LK = 7x-10 = 7 (4) - 10

    =28-10

    = 18

    LJ=18+28

    LJ=46 ...
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