12-3u=3

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Solution for 12-3u=3 equation: 


Simplifying
12 + -3u = 3

Solving
12 + -3u = 3

Solving for variable 'u'.

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

Add '-12' to each side of the equation.
12 + -12 + -3u = 3 + -12

Combine like terms: 12 + -12 = 0
0 + -3u = 3 + -12
-3u = 3 + -12

Combine like terms: 3 + -12 = -9
-3u = -9

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

Simplifying
u = 3

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