9u-3u-u-4u=12

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Solution for 9u-3u-u-4u=12 equation: 


Simplifying
9u + -3u + -1u + -4u = 12

Combine like terms: 9u + -3u = 6u
6u + -1u + -4u = 12

Combine like terms: 6u + -1u = 5u
5u + -4u = 12

Combine like terms: 5u + -4u = 1u
1u = 12

Solving
1u = 12

Solving for variable 'u'.

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

Divide each side by '1'.
u = 12

Simplifying
u = 12

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