12(1x-12)=9(1+7x)

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Solution for 12(1x-12)=9(1+7x) equation: 



12(1x-12)=9(1+7x)

We move all terms to the left:

12(1x-12)-(9(1+7x))=0

We add all the numbers together, and all the variables

12(x-12)-(9(7x+1))=0

We multiply parentheses

12x-(9(7x+1))-144=0



We calculate terms in parentheses: -(9(7x+1)), so:

9(7x+1)

We multiply parentheses

63x+9

Back to the equation:

-(63x+9)



We get rid of parentheses

12x-63x-9-144=0

We add all the numbers together, and all the variables

-51x-153=0

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

-51x=153

x=153/-51

x=-3

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