9u=10u+9

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Solution for 9u=10u+9 equation: 


Simplifying
9u = 10u + 9

Reorder the terms:
9u = 9 + 10u

Solving
9u = 9 + 10u

Solving for variable 'u'.

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

Add '-10u' to each side of the equation.
9u + -10u = 9 + 10u + -10u

Combine like terms: 9u + -10u = -1u
-1u = 9 + 10u + -10u

Combine like terms: 10u + -10u = 0
-1u = 9 + 0
-1u = 9

Divide each side by '-1'.
u = -9

Simplifying
u = -9

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