K+9=12

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Solution for K+9=12 equation: 


Simplifying
K + 9 = 12

Reorder the terms:
9 + K = 12

Solving
9 + K = 12

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 = 12 + -9

Combine like terms: 9 + -9 = 0
0 + K = 12 + -9
K = 12 + -9

Combine like terms: 12 + -9 = 3
K = 3

Simplifying
K = 3

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