12=-3(2+x)

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Solution for 12=-3(2+x) equation: 



12=-3(2+x)

We move all terms to the left:

12-(-3(2+x))=0

We add all the numbers together, and all the variables

-(-3(x+2))+12=0



We calculate terms in parentheses: -(-3(x+2)), so:

-3(x+2)

We multiply parentheses

-3x-6

Back to the equation:

-(-3x-6)



We get rid of parentheses

3x+6+12=0

We add all the numbers together, and all the variables

3x+18=0

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

3x=-18

x=-18/3

x=-6

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