12(k+6)+9=5k-9

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Solution for 12(k+6)+9=5k-9 equation:


Simplifying
12(k + 6) + 9 = 5k + -9

Reorder the terms:
12(6 + k) + 9 = 5k + -9
(6 * 12 + k * 12) + 9 = 5k + -9
(72 + 12k) + 9 = 5k + -9

Reorder the terms:
72 + 9 + 12k = 5k + -9

Combine like terms: 72 + 9 = 81
81 + 12k = 5k + -9

Reorder the terms:
81 + 12k = -9 + 5k

Solving
81 + 12k = -9 + 5k

Solving for variable 'k'.

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

Add '-5k' to each side of the equation.
81 + 12k + -5k = -9 + 5k + -5k

Combine like terms: 12k + -5k = 7k
81 + 7k = -9 + 5k + -5k

Combine like terms: 5k + -5k = 0
81 + 7k = -9 + 0
81 + 7k = -9

Add '-81' to each side of the equation.
81 + -81 + 7k = -9 + -81

Combine like terms: 81 + -81 = 0
0 + 7k = -9 + -81
7k = -9 + -81

Combine like terms: -9 + -81 = -90
7k = -90

Divide each side by '7'.
k = -12.85714286

Simplifying
k = -12.85714286

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