-80=8(u-4)

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Solution for -80=8(u-4) equation: 



-80=8(u-4)

We move all terms to the left:

-80-(8(u-4))=0



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

8(u-4)

We multiply parentheses

8u-32

Back to the equation:

-(8u-32)



We get rid of parentheses

-8u+32-80=0

We add all the numbers together, and all the variables

-8u-48=0

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

-8u=48

u=48/-8

u=-6

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