K+0.4=13

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Solution for K+0.4=13 equation: 


Simplifying
K + 0.4 = 13

Reorder the terms:
0.4 + K = 13

Solving
0.4 + K = 13

Solving for variable 'K'.

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

Add '-0.4' to each side of the equation.
0.4 + -0.4 + K = 13 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + K = 13 + -0.4
K = 13 + -0.4

Combine like terms: 13 + -0.4 = 12.6
K = 12.6

Simplifying
K = 12.6

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