15=6-2k-k

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Solution for 15=6-2k-k equation:


Simplifying
15 = 6 + -2k + -1k

Combine like terms: -2k + -1k = -3k
15 = 6 + -3k

Solving
15 = 6 + -3k

Solving for variable 'k'.

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

Add '3k' to each side of the equation.
15 + 3k = 6 + -3k + 3k

Combine like terms: -3k + 3k = 0
15 + 3k = 6 + 0
15 + 3k = 6

Add '-15' to each side of the equation.
15 + -15 + 3k = 6 + -15

Combine like terms: 15 + -15 = 0
0 + 3k = 6 + -15
3k = 6 + -15

Combine like terms: 6 + -15 = -9
3k = -9

Divide each side by '3'.
k = -3

Simplifying
k = -3

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