n+a=k

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Solution for n+a=k equation: 


Simplifying
n + a = k

Reorder the terms:
a + n = k

Solving
a + n = k

Solving for variable 'a'.

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

Add '-1n' to each side of the equation.
a + n + -1n = k + -1n

Combine like terms: n + -1n = 0
a + 0 = k + -1n
a = k + -1n

Simplifying
a = k + -1n

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