9u=42+2u

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Solution for 9u=42+2u equation: 


Simplifying
9u = 42 + 2u

Solving
9u = 42 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
9u + -2u = 42 + 2u + -2u

Combine like terms: 9u + -2u = 7u
7u = 42 + 2u + -2u

Combine like terms: 2u + -2u = 0
7u = 42 + 0
7u = 42

Divide each side by '7'.
u = 6

Simplifying
u = 6

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