9u-u=40

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Solution for 9u-u=40 equation: 


Simplifying
9u + -1u = 40

Combine like terms: 9u + -1u = 8u
8u = 40

Solving
8u = 40

Solving for variable 'u'.

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

Divide each side by '8'.
u = 5

Simplifying
u = 5

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