-4u=9+5u

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Solution for -4u=9+5u equation: 



-4u=9+5u

We move all terms to the left:

-4u-(9+5u)=0

We add all the numbers together, and all the variables

-4u-(5u+9)=0

We get rid of parentheses

-4u-5u-9=0

We add all the numbers together, and all the variables

-9u-9=0

We move all terms containing u to the left, all other terms to the right

-9u=9

u=9/-9

u=-1

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