28=7(11+u)

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Solution for 28=7(11+u) equation: 



28=7(11+u)

We move all terms to the left:

28-(7(11+u))=0

We add all the numbers together, and all the variables

-(7(u+11))+28=0



We calculate terms in parentheses: -(7(u+11)), so:

7(u+11)

We multiply parentheses

7u+77

Back to the equation:

-(7u+77)



We get rid of parentheses

-7u-77+28=0

We add all the numbers together, and all the variables

-7u-49=0

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

-7u=49

u=49/-7

u=-7

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