3=6+3u

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Solution for 3=6+3u equation: 


Simplifying
3 = 6 + 3u

Solving
3 = 6 + 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.
3 + -3u = 6 + 3u + -3u

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

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

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

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

Divide each side by '-3'.
u = -1

Simplifying
u = -1

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