-63=-9(u+4)

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Solution for -63=-9(u+4) equation: 



-63=-9(u+4)

We move all terms to the left:

-63-(-9(u+4))=0



We calculate terms in parentheses: -(-9(u+4)), so:

-9(u+4)

We multiply parentheses

-9u-36

Back to the equation:

-(-9u-36)



We get rid of parentheses

9u+36-63=0

We add all the numbers together, and all the variables

9u-27=0

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

9u=27

u=27/9

u=3

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