K+9=5k+21

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Solution for K+9=5k+21 equation: 


Simplifying
K + 9 = 5k + 21

Reorder the terms:
9 + K = 5k + 21

Reorder the terms:
9 + K = 21 + 5k

Solving
9 + K = 21 + 5k

Solving for variable 'K'.

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

Add '-9' to each side of the equation.
9 + -9 + K = 21 + -9 + 5k

Combine like terms: 9 + -9 = 0
0 + K = 21 + -9 + 5k
K = 21 + -9 + 5k

Combine like terms: 21 + -9 = 12
K = 12 + 5k

Simplifying
K = 12 + 5k

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