x+12=7x-(4x-4)

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Solution for x+12=7x-(4x-4) equation: 



x+12=7x-(4x-4)

We move all terms to the left:

x+12-(7x-(4x-4))=0



We calculate terms in parentheses: -(7x-(4x-4)), so:

7x-(4x-4)

We get rid of parentheses

7x-4x+4

We add all the numbers together, and all the variables

3x+4

Back to the equation:

-(3x+4)



We get rid of parentheses

x-3x-4+12=0

We add all the numbers together, and all the variables

-2x+8=0

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

-2x=-8

x=-8/-2

x=+4

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