use substitution to solve for k. j+2k= -4 3j-4k= 3

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use substitution to solve for k. j+2k= -4 3j-4k= 3

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    2022-01-11T18:22:55+00:00

    j+2k=-4
    j=-4-2k (1)

    3j-4k=3 (2)

    Substitue (1) in (2)

    3(-4-2k)-4k=3
    -12-6k-4k=3
    -10k=3+12
    k=-15/10 (3)

    Substitue (3) in (1)

    j=-4-2(-15/10)
    j=-1

    Final answers j = -1 and k = -15/10

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