12-[3k+(-1+7k)]=

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Solution for 12-[3k+(-1+7k)]= equation:


Simplifying
12 + -1[3k + (-1 + 7k)] = 0

Remove parenthesis around (-1 + 7k)
12 + -1[3k + -1 + 7k] = 0

Reorder the terms:
12 + -1[-1 + 3k + 7k] = 0

Combine like terms: 3k + 7k = 10k
12 + -1[-1 + 10k] = 0
12 + [-1 * -1 + 10k * -1] = 0
12 + [1 + -10k] = 0

Combine like terms: 12 + 1 = 13
13 + -10k = 0

Solving
13 + -10k = 0

Solving for variable 'k'.

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

Add '-13' to each side of the equation.
13 + -13 + -10k = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -10k = 0 + -13
-10k = 0 + -13

Combine like terms: 0 + -13 = -13
-10k = -13

Divide each side by '-10'.
k = 1.3

Simplifying
k = 1.3

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