9+u=4

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Solution for 9+u=4 equation: 


Simplifying
9 + u = 4

Solving
9 + u = 4

Solving for variable 'u'.

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

Add '-9' to each side of the equation.
9 + -9 + u = 4 + -9

Combine like terms: 9 + -9 = 0
0 + u = 4 + -9
u = 4 + -9

Combine like terms: 4 + -9 = -5
u = -5

Simplifying
u = -5

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