6u-u-2u-u=18

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Solution for 6u-u-2u-u=18 equation: 


Simplifying
6u + -1u + -2u + -1u = 18

Combine like terms: 6u + -1u = 5u
5u + -2u + -1u = 18

Combine like terms: 5u + -2u = 3u
3u + -1u = 18

Combine like terms: 3u + -1u = 2u
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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