-13=11+3(u-11)

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Solution for -13=11+3(u-11) equation: 



-13=11+3(u-11)

We move all terms to the left:

-13-(11+3(u-11))=0



We calculate terms in parentheses: -(11+3(u-11)), so:

11+3(u-11)

determiningTheFunctionDomain
3(u-11)+11

We multiply parentheses

3u-33+11

We add all the numbers together, and all the variables

3u-22

Back to the equation:

-(3u-22)



We get rid of parentheses

-3u+22-13=0

We add all the numbers together, and all the variables

-3u+9=0

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

-3u=-9

u=-9/-3

u=+3

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