u+9=8

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Solution for u+9=8 equation: 


Simplifying
u + 9 = 8

Reorder the terms:
9 + u = 8

Solving
9 + u = 8

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 = 8 + -9

Combine like terms: 9 + -9 = 0
0 + u = 8 + -9
u = 8 + -9

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

Simplifying
u = -1

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