3u+12=45

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Solution for 3u+12=45 equation: 


Simplifying
3u + 12 = 45

Reorder the terms:
12 + 3u = 45

Solving
12 + 3u = 45

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 = 45 + -12

Combine like terms: 12 + -12 = 0
0 + 3u = 45 + -12
3u = 45 + -12

Combine like terms: 45 + -12 = 33
3u = 33

Divide each side by '3'.
u = 11

Simplifying
u = 11

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