u-u+2u=18

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Solution for u-u+2u=18 equation:


Simplifying
u + -1u + 2u = 18

Combine like terms: u + -1u = 0
0 + 2u = 18
2u = 18

Solving
2u = 18

Solving for variable 'u'.

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

Divide each side by '2'.
u = 9

Simplifying
u = 9

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