36+3u=81

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Solution for 36+3u=81 equation: 


Simplifying
36 + 3u = 81

Solving
36 + 3u = 81

Solving for variable 'u'.

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

Add '-36' to each side of the equation.
36 + -36 + 3u = 81 + -36

Combine like terms: 36 + -36 = 0
0 + 3u = 81 + -36
3u = 81 + -36

Combine like terms: 81 + -36 = 45
3u = 45

Divide each side by '3'.
u = 15

Simplifying
u = 15

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