12k-[k+(-1+2k)]=

Solution for 12k-[k+(-1+2k)]= equation:

Simplifying
12k + -1[k + (-1 + 2k)] = 0

Remove parenthesis around (-1 + 2k)
12k + -1[k + -1 + 2k] = 0

Reorder the terms:
12k + -1[-1 + k + 2k] = 0

Combine like terms: k + 2k = 3k
12k + -1[-1 + 3k] = 0
12k + [-1 * -1 + 3k * -1] = 0
12k + [1 + -3k] = 0

Reorder the terms:
1 + 12k + -3k = 0

Combine like terms: 12k + -3k = 9k
1 + 9k = 0

Solving
1 + 9k = 0

Solving for variable 'k'.

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

Add '-1' to each side of the equation.
1 + -1 + 9k = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 9k = 0 + -1
9k = 0 + -1

Combine like terms: 0 + -1 = -1
9k = -1

Divide each side by '9'.
k = -0.1111111111

Simplifying
k = -0.1111111111