[K+7]=3

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Solution for [K+7]=3 equation: 


Simplifying
[K + 7] = 3

Reorder the terms:
[7 + K] = 3

Remove brackets around [7 + K]
7 + K = 3

Solving
7 + K = 3

Solving for variable 'K'.

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

Add '-7' to each side of the equation.
7 + -7 + K = 3 + -7

Combine like terms: 7 + -7 = 0
0 + K = 3 + -7
K = 3 + -7

Combine like terms: 3 + -7 = -4
K = -4

Simplifying
K = -4

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