12=7x-(1+6x)

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Solution for 12=7x-(1+6x) equation: 



12=7x-(1+6x)

We move all terms to the left:

12-(7x-(1+6x))=0

We add all the numbers together, and all the variables

-(7x-(6x+1))+12=0



We calculate terms in parentheses: -(7x-(6x+1)), so:

7x-(6x+1)

We get rid of parentheses

7x-6x-1

We add all the numbers together, and all the variables

x-1

Back to the equation:

-(x-1)



We get rid of parentheses

-x+1+12=0

We add all the numbers together, and all the variables

-1x+13=0

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

-x=-13

x=-13/-1

x=+13

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