3(-u)=0

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Solution for 3(-u)=0 equation: 


Simplifying
3(-1u) = 0

Remove parenthesis around (-1u)
3 * -1u = 0

Multiply 3 * -1
-3u = 0

Solving
-3u = 0

Solving for variable 'u'.

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

Divide each side by '-3'.
u = 0

Simplifying
u = 0

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