42=12-(x+4)

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Solution for 42=12-(x+4) equation: 



42=12-(x+4)

We move all terms to the left:

42-(12-(x+4))=0



We calculate terms in parentheses: -(12-(x+4)), so:

12-(x+4)

determiningTheFunctionDomain
-(x+4)+12

We get rid of parentheses

-x-4+12

We add all the numbers together, and all the variables

-1x+8

Back to the equation:

-(-1x+8)



We get rid of parentheses

1x-8+42=0

We add all the numbers together, and all the variables

x+34=0

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

x=-34

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