u-u+u=12

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Solution for u-u+u=12 equation: 


Simplifying
u + -1u + u = 12

Combine like terms: u + -1u = 0
0 + u = 12
u = 12

Solving
u = 12

Solving for variable 'u'.

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

Simplifying
u = 12

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