9(k+8)+3k=-6

Solution for 9(k+8)+3k=-6 equation:

Simplifying
9(k + 8) + 3k = -6

Reorder the terms:
9(8 + k) + 3k = -6
(8 * 9 + k * 9) + 3k = -6
(72 + 9k) + 3k = -6

Combine like terms: 9k + 3k = 12k
72 + 12k = -6

Solving
72 + 12k = -6

Solving for variable 'k'.

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

Add '-72' to each side of the equation.
72 + -72 + 12k = -6 + -72

Combine like terms: 72 + -72 = 0
0 + 12k = -6 + -72
12k = -6 + -72

Combine like terms: -6 + -72 = -78
12k = -78

Divide each side by '12'.
k = -6.5

Simplifying
k = -6.5