3u=9u+6

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Solution for 3u=9u+6 equation: 


Simplifying
3u = 9u + 6

Reorder the terms:
3u = 6 + 9u

Solving
3u = 6 + 9u

Solving for variable 'u'.

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

Add '-9u' to each side of the equation.
3u + -9u = 6 + 9u + -9u

Combine like terms: 3u + -9u = -6u
-6u = 6 + 9u + -9u

Combine like terms: 9u + -9u = 0
-6u = 6 + 0
-6u = 6

Divide each side by '-6'.
u = -1

Simplifying
u = -1

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