9u=3u-18

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Solution for 9u=3u-18 equation: 


Simplifying
9u = 3u + -18

Reorder the terms:
9u = -18 + 3u

Solving
9u = -18 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
9u + -3u = -18 + 3u + -3u

Combine like terms: 9u + -3u = 6u
6u = -18 + 3u + -3u

Combine like terms: 3u + -3u = 0
6u = -18 + 0
6u = -18

Divide each side by '6'.
u = -3

Simplifying
u = -3

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