42=2x+(-12)

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Solution for 42=2x+(-12) equation: 



42=2x+(-12)

We move all terms to the left:

42-(2x+(-12))=0



We calculate terms in parentheses: -(2x+(-12)), so:

2x+(-12)

We add all the numbers together, and all the variables

2x-12

Back to the equation:

-(2x-12)



We get rid of parentheses

-2x+12+42=0

We add all the numbers together, and all the variables

-2x+54=0

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

-2x=-54

x=-54/-2

x=+27

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