63=(-7u)

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Solution for 63=(-7u) equation: 



63=(-7u)

We move all terms to the left:

63-((-7u))=0



We calculate terms in parentheses: -((-7u)), so:

(-7u)

We get rid of parentheses

-7u

Back to the equation:

-(-7u)



We get rid of parentheses

7u+63=0

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

7u=-63

u=-63/7

u=-9

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