7u=u+18

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Solution for 7u=u+18 equation: 


Simplifying
7u = u + 18

Reorder the terms:
7u = 18 + u

Solving
7u = 18 + 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.
7u + -1u = 18 + u + -1u

Combine like terms: 7u + -1u = 6u
6u = 18 + u + -1u

Combine like terms: u + -1u = 0
6u = 18 + 0
6u = 18

Divide each side by '6'.
u = 3

Simplifying
u = 3

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