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14 June, 14:48

4x-c=k for x

A.) x=k-c/4

B.) x=k+c/4

C.) x=4 (k+c)

D.) x=4 (k-c)

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Answers (2)
  1. 14 June, 15:08
    0
    Pure algebra:

    4x - c = k

    add + c to both sides:

    4x - c (+c) = k (+c)

    4x = k + c

    divide both sides by 4:

    4x/4 = k+c/4

    x = k+c / 4

    so answer is b)
  2. 14 June, 15:38
    0
    4x - c=k for x

    add c on both sides

    4x - c + c = k + c

    simplify

    4x = k + c

    Divide both sides by 4

    4x / 4 = (k + c) / 4

    simplify

    x = (k + c) / 4

    answer

    x = (k + c) / 4
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