-45=3(u-8)

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Solution for -45=3(u-8) equation: 



-45=3(u-8)

We move all terms to the left:

-45-(3(u-8))=0



We calculate terms in parentheses: -(3(u-8)), so:

3(u-8)

We multiply parentheses

3u-24

Back to the equation:

-(3u-24)



We get rid of parentheses

-3u+24-45=0

We add all the numbers together, and all the variables

-3u-21=0

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

-3u=21

u=21/-3

u=-7

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