-108=-6(6+3k)

Solution for -108=-6(6+3k) equation:

Simplifying
-108 = -6(6 + 3k)
-108 = (6 * -6 + 3k * -6)
-108 = (-36 + -18k)

Solving
-108 = -36 + -18k

Solving for variable 'k'.

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

Add '18k' to each side of the equation.
-108 + 18k = -36 + -18k + 18k

Combine like terms: -18k + 18k = 0
-108 + 18k = -36 + 0
-108 + 18k = -36

Add '108' to each side of the equation.
-108 + 108 + 18k = -36 + 108

Combine like terms: -108 + 108 = 0
0 + 18k = -36 + 108
18k = -36 + 108

Combine like terms: -36 + 108 = 72
18k = 72

Divide each side by '18'.
k = 4

Simplifying
k = 4