12=-x+39

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Solution for 12=-x+39 equation: 



12=-x+39

We move all terms to the left:

12-(-x+39)=0

We add all the numbers together, and all the variables

-(-1x+39)+12=0

We get rid of parentheses

1x-39+12=0

We add all the numbers together, and all the variables

x-27=0

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

x=27

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