28=-7u+5(u+8)

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Solution for 28=-7u+5(u+8) equation: 



28=-7u+5(u+8)

We move all terms to the left:

28-(-7u+5(u+8))=0



We calculate terms in parentheses: -(-7u+5(u+8)), so:

-7u+5(u+8)

We multiply parentheses

-7u+5u+40

We add all the numbers together, and all the variables

-2u+40

Back to the equation:

-(-2u+40)



We get rid of parentheses

2u-40+28=0

We add all the numbers together, and all the variables

2u-12=0

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

2u=12

u=12/2

u=6

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