63=-9(u+3)

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Solution for 63=-9(u+3) equation: 



63=-9(u+3)

We move all terms to the left:

63-(-9(u+3))=0



We calculate terms in parentheses: -(-9(u+3)), so:

-9(u+3)

We multiply parentheses

-9u-27

Back to the equation:

-(-9u-27)



We get rid of parentheses

9u+27+63=0

We add all the numbers together, and all the variables

9u+90=0

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

9u=-90

u=-90/9

u=-10

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