28=-8u+4(u+5)

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Solution for 28=-8u+4(u+5) equation: 



28=-8u+4(u+5)

We move all terms to the left:

28-(-8u+4(u+5))=0



We calculate terms in parentheses: -(-8u+4(u+5)), so:

-8u+4(u+5)

We multiply parentheses

-8u+4u+20

We add all the numbers together, and all the variables

-4u+20

Back to the equation:

-(-4u+20)



We get rid of parentheses

4u-20+28=0

We add all the numbers together, and all the variables

4u+8=0

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

4u=-8

u=-8/4

u=-2

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