19=(-2)+u

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Solution for 19=(-2)+u equation: 



19=(-2)+u

We move all terms to the left:

19-((-2)+u)=0



We calculate terms in parentheses: -((-2)+u), so:

(-2)+u

determiningTheFunctionDomain
u+(-2)

We add all the numbers together, and all the variables

u-2

Back to the equation:

-(u-2)



We get rid of parentheses

-u+2+19=0

We add all the numbers together, and all the variables

-1u+21=0

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

-u=-21

u=-21/-1

u=+21

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