-5u=9-8u

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Solution for -5u=9-8u equation: 


Simplifying
-5u = 9 + -8u

Solving
-5u = 9 + -8u

Solving for variable 'u'.

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

Add '8u' to each side of the equation.
-5u + 8u = 9 + -8u + 8u

Combine like terms: -5u + 8u = 3u
3u = 9 + -8u + 8u

Combine like terms: -8u + 8u = 0
3u = 9 + 0
3u = 9

Divide each side by '3'.
u = 3

Simplifying
u = 3

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