u+k=a

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Solution for u+k=a equation: 


Simplifying
u + k = a

Reorder the terms:
k + u = a

Solving
k + u = a

Solving for variable 'k'.

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

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

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

Simplifying
k = a + -1u

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