-28=7(u-8)+7u

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Solution for -28=7(u-8)+7u equation: 



-28=7(u-8)+7u

We move all terms to the left:

-28-(7(u-8)+7u)=0



We calculate terms in parentheses: -(7(u-8)+7u), so:

7(u-8)+7u

We add all the numbers together, and all the variables

7u+7(u-8)

We multiply parentheses

7u+7u-56

We add all the numbers together, and all the variables

14u-56

Back to the equation:

-(14u-56)



We get rid of parentheses

-14u+56-28=0

We add all the numbers together, and all the variables

-14u+28=0

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

-14u=-28

u=-28/-14

u=+2

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