0=-3u+9

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Solution for 0=-3u+9 equation: 


Simplifying
0 = -3u + 9

Reorder the terms:
0 = 9 + -3u

Solving
0 = 9 + -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.
0 + 3u = 9 + -3u + 3u
Remove the zero:
3u = 9 + -3u + 3u

Combine like terms: -3u + 3u = 0
3u = 9 + 0
3u = 9

Divide each side by '3'.
u = 3

Simplifying
u = 3

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