3(2x+4+x)=-3(x+4)

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Solution for 3(2x+4+x)=-3(x+4) equation: 



3(2x+4+x)=-3(x+4)

We move all terms to the left:

3(2x+4+x)-(-3(x+4))=0

We add all the numbers together, and all the variables

3(3x+4)-(-3(x+4))=0

We multiply parentheses

9x-(-3(x+4))+12=0



We calculate terms in parentheses: -(-3(x+4)), so:

-3(x+4)

We multiply parentheses

-3x-12

Back to the equation:

-(-3x-12)



We get rid of parentheses

9x+3x+12+12=0

We add all the numbers together, and all the variables

12x+24=0

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

12x=-24

x=-24/12

x=-2

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