28=-7(k-1)

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Solution for 28=-7(k-1) equation:


Simplifying
28 = -7(k + -1)

Reorder the terms:
28 = -7(-1 + k)
28 = (-1 * -7 + k * -7)
28 = (7 + -7k)

Solving
28 = 7 + -7k

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '7k' to each side of the equation.
28 + 7k = 7 + -7k + 7k

Combine like terms: -7k + 7k = 0
28 + 7k = 7 + 0
28 + 7k = 7

Add '-28' to each side of the equation.
28 + -28 + 7k = 7 + -28

Combine like terms: 28 + -28 = 0
0 + 7k = 7 + -28
7k = 7 + -28

Combine like terms: 7 + -28 = -21
7k = -21

Divide each side by '7'.
k = -3

Simplifying
k = -3

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