-9x-12=3(x+8)

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Solution for -9x-12=3(x+8) equation: 



-9x-12=3(x+8)

We move all terms to the left:

-9x-12-(3(x+8))=0



We calculate terms in parentheses: -(3(x+8)), so:

3(x+8)

We multiply parentheses

3x+24

Back to the equation:

-(3x+24)



We get rid of parentheses

-9x-3x-24-12=0

We add all the numbers together, and all the variables

-12x-36=0

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

-12x=36

x=36/-12

x=-3

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