3x+4=(x-12)

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Solution for 3x+4=(x-12) equation: 



3x+4=(x-12)

We move all terms to the left:

3x+4-((x-12))=0



We calculate terms in parentheses: -((x-12)), so:

(x-12)

We get rid of parentheses

x-12

Back to the equation:

-(x-12)



We get rid of parentheses

3x-x+12+4=0

We add all the numbers together, and all the variables

2x+16=0

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

2x=-16

x=-16/2

x=-8

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