6u+3u-18=33

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Solution for 6u+3u-18=33 equation: 


Simplifying
6u + 3u + -18 = 33

Reorder the terms:
-18 + 6u + 3u = 33

Combine like terms: 6u + 3u = 9u
-18 + 9u = 33

Solving
-18 + 9u = 33

Solving for variable 'u'.

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

Add '18' to each side of the equation.
-18 + 18 + 9u = 33 + 18

Combine like terms: -18 + 18 = 0
0 + 9u = 33 + 18
9u = 33 + 18

Combine like terms: 33 + 18 = 51
9u = 51

Divide each side by '9'.
u = 5.666666667

Simplifying
u = 5.666666667

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