-63=-9(-9-4x)

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Solution for -63=-9(-9-4x) equation: 



-63=-9(-9-4x)

We move all terms to the left:

-63-(-9(-9-4x))=0

We add all the numbers together, and all the variables

-(-9(-4x-9))-63=0



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

-9(-4x-9)

We multiply parentheses

36x+81

Back to the equation:

-(36x+81)



We get rid of parentheses

-36x-81-63=0

We add all the numbers together, and all the variables

-36x-144=0

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

-36x=144

x=144/-36

x=-4

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