-192=-5x-4(x+21)

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Solution for -192=-5x-4(x+21) equation: 



-192=-5x-4(x+21)

We move all terms to the left:

-192-(-5x-4(x+21))=0



We calculate terms in parentheses: -(-5x-4(x+21)), so:

-5x-4(x+21)

We multiply parentheses

-5x-4x-84

We add all the numbers together, and all the variables

-9x-84

Back to the equation:

-(-9x-84)



We get rid of parentheses

9x+84-192=0

We add all the numbers together, and all the variables

9x-108=0

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

9x=108

x=108/9

x=12

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