12-7k+9-k=

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Solution for 12-7k+9-k= equation:


Simplifying
12 + -7k + 9 + -1k = 0

Reorder the terms:
12 + 9 + -7k + -1k = 0

Combine like terms: 12 + 9 = 21
21 + -7k + -1k = 0

Combine like terms: -7k + -1k = -8k
21 + -8k = 0

Solving
21 + -8k = 0

Solving for variable 'k'.

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

Add '-21' to each side of the equation.
21 + -21 + -8k = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -8k = 0 + -21
-8k = 0 + -21

Combine like terms: 0 + -21 = -21
-8k = -21

Divide each side by '-8'.
k = 2.625

Simplifying
k = 2.625

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