3x-12-7x=2(x+6)

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Solution for 3x-12-7x=2(x+6) equation: 



3x-12-7x=2(x+6)

We move all terms to the left:

3x-12-7x-(2(x+6))=0

We add all the numbers together, and all the variables

-4x-(2(x+6))-12=0



We calculate terms in parentheses: -(2(x+6)), so:

2(x+6)

We multiply parentheses

2x+12

Back to the equation:

-(2x+12)



We get rid of parentheses

-4x-2x-12-12=0

We add all the numbers together, and all the variables

-6x-24=0

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

-6x=24

x=24/-6

x=-4

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