K^2+6=15

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Solution for K^2+6=15 equation: 


Simplifying
K2 + 6 = 15

Reorder the terms:
6 + K2 = 15

Solving
6 + K2 = 15

Solving for variable 'K'.

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

Add '-6' to each side of the equation.
6 + -6 + K2 = 15 + -6

Combine like terms: 6 + -6 = 0
0 + K2 = 15 + -6
K2 = 15 + -6

Combine like terms: 15 + -6 = 9
K2 = 9

Simplifying
K2 = 9

Take the square root of each side:
K = {-3, 3}

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