7k+9(k+6)-3k-12=

Solution for 7k+9(k+6)-3k-12= equation:

Simplifying
7k + 9(k + 6) + -3k + -12 = 0

Reorder the terms:
7k + 9(6 + k) + -3k + -12 = 0
7k + (6 * 9 + k * 9) + -3k + -12 = 0
7k + (54 + 9k) + -3k + -12 = 0

Reorder the terms:
54 + -12 + 7k + 9k + -3k = 0

Combine like terms: 54 + -12 = 42
42 + 7k + 9k + -3k = 0

Combine like terms: 7k + 9k = 16k
42 + 16k + -3k = 0

Combine like terms: 16k + -3k = 13k
42 + 13k = 0

Solving
42 + 13k = 0

Solving for variable 'k'.

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

Add '-42' to each side of the equation.
42 + -42 + 13k = 0 + -42

Combine like terms: 42 + -42 = 0
0 + 13k = 0 + -42
13k = 0 + -42

Combine like terms: 0 + -42 = -42
13k = -42

Divide each side by '13'.
k = -3.230769231

Simplifying
k = -3.230769231