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21 October, 15:27

5 - 7k = - 4 (k + 1) - 3

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Answers (2)
  1. 21 October, 15:31
    0
    5 - 7k = - 4 (k + 1) - 3

    5 - 7k = - 4k - 4 - 3

    7k + 4k = - 4 - 3 - 5

    11k = - 12

    k = - 12/11

    ~batmans wife dun dun dun ...
  2. 21 October, 15:41
    0
    Step 1: Simplify both sides of the equation.

    5

    -

    7

    k

    =

    -

    4

    (

    k

    +

    1

    )

    -

    3

    5

    +

    -

    7

    k

    =

    (

    -

    4

    )

    (

    k

    )

    +

    (

    -

    4

    )

    (

    1

    )

    +

    -

    3

    (Distribute)

    5

    +

    -

    7

    k

    =

    -

    4

    k

    +

    -

    4

    +

    -

    3

    -

    7

    k

    +

    5

    =

    (

    -

    4

    k

    )

    +

    (

    -

    4

    +

    -

    3

    )

    (Combine Like Terms)

    -

    7

    k

    +

    5

    =

    -

    4

    k

    +

    -

    7

    -

    7

    k

    +

    5

    =

    -

    4

    k

    -

    7

    Step 2: Add 4k to both sides.

    -

    7

    k

    +

    5

    +

    4

    k

    =

    -

    4

    k

    -

    7

    +

    4

    k

    -

    3

    k

    +

    5

    =

    -

    7

    Step 3: Subtract 5 from both sides.

    -

    3

    k

    +

    5

    -

    5

    =

    -

    7

    -

    5

    -

    3

    k

    =

    -

    12

    Step 4: Divide both sides by - 3.

    -

    3

    k

    -

    3

    =

    -

    12

    -

    3

    k

    =

    4

    Answer:

    K=4
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