15+7k+6-k=6+k

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Solution for 15+7k+6-k=6+k equation:


Simplifying
15 + 7k + 6 + -1k = 6 + k

Reorder the terms:
15 + 6 + 7k + -1k = 6 + k

Combine like terms: 15 + 6 = 21
21 + 7k + -1k = 6 + k

Combine like terms: 7k + -1k = 6k
21 + 6k = 6 + k

Solving
21 + 6k = 6 + k

Solving for variable 'k'.

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

Add '-1k' to each side of the equation.
21 + 6k + -1k = 6 + k + -1k

Combine like terms: 6k + -1k = 5k
21 + 5k = 6 + k + -1k

Combine like terms: k + -1k = 0
21 + 5k = 6 + 0
21 + 5k = 6

Add '-21' to each side of the equation.
21 + -21 + 5k = 6 + -21

Combine like terms: 21 + -21 = 0
0 + 5k = 6 + -21
5k = 6 + -21

Combine like terms: 6 + -21 = -15
5k = -15

Divide each side by '5'.
k = -3

Simplifying
k = -3

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