x=3(x+1)=12

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Solution for x=3(x+1)=12 equation: 



x=3(x+1)=12

We move all terms to the left:

x-(3(x+1))=0



We calculate terms in parentheses: -(3(x+1)), so:

3(x+1)

We multiply parentheses

3x+3

Back to the equation:

-(3x+3)



We get rid of parentheses

x-3x-3=0

We add all the numbers together, and all the variables

-2x-3=0

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

-2x=3

x=3/-2

x=-1+1/2

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