-u-9=5+u

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



-u-9=5+u

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-1u-(u+5)-9=0

We get rid of parentheses

-1u-u-5-9=0

We add all the numbers together, and all the variables

-2u-14=0

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

-2u=14

u=14/-2

u=-7

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