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

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



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

We move all terms to the left:

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



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

3-3x-(-8x)

determiningTheFunctionDomain
-3x-(-8x)+3

We get rid of parentheses

-3x+8x+3

We add all the numbers together, and all the variables

5x+3

Back to the equation:

-(5x+3)



We get rid of parentheses

-5x-3-12=0

We add all the numbers together, and all the variables

-5x-15=0

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

-5x=15

x=15/-5

x=-3

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