8-k=7(k-4)

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Solution for 8-k=7(k-4) equation:


Simplifying
8 + -1k = 7(k + -4)

Reorder the terms:
8 + -1k = 7(-4 + k)
8 + -1k = (-4 * 7 + k * 7)
8 + -1k = (-28 + 7k)

Solving
8 + -1k = -28 + 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.
8 + -1k + -7k = -28 + 7k + -7k

Combine like terms: -1k + -7k = -8k
8 + -8k = -28 + 7k + -7k

Combine like terms: 7k + -7k = 0
8 + -8k = -28 + 0
8 + -8k = -28

Add '-8' to each side of the equation.
8 + -8 + -8k = -28 + -8

Combine like terms: 8 + -8 = 0
0 + -8k = -28 + -8
-8k = -28 + -8

Combine like terms: -28 + -8 = -36
-8k = -36

Divide each side by '-8'.
k = 4.5

Simplifying
k = 4.5

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