u+u=u+42

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Solution for u+u=u+42 equation: 


Simplifying
u + u = u + 42

Combine like terms: u + u = 2u
2u = u + 42

Reorder the terms:
2u = 42 + u

Solving
2u = 42 + u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
2u + -1u = 42 + u + -1u

Combine like terms: 2u + -1u = 1u
1u = 42 + u + -1u

Combine like terms: u + -1u = 0
1u = 42 + 0
1u = 42

Divide each side by '1'.
u = 42

Simplifying
u = 42

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