12=(7x+7)+(3-3x)

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Solution for 12=(7x+7)+(3-3x) equation: 



12=(7x+7)+(3-3x)

We move all terms to the left:

12-((7x+7)+(3-3x))=0

We add all the numbers together, and all the variables

-((7x+7)+(-3x+3))+12=0



We calculate terms in parentheses: -((7x+7)+(-3x+3)), so:

(7x+7)+(-3x+3)

We get rid of parentheses

7x-3x+7+3

We add all the numbers together, and all the variables

4x+10

Back to the equation:

-(4x+10)



We get rid of parentheses

-4x-10+12=0

We add all the numbers together, and all the variables

-4x+2=0

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

-4x=-2

x=-2/-4

x=1/2

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