7x+12=39-x

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Solution for 7x+12=39-x equation: 



7x+12=39-x

We move all terms to the left:

7x+12-(39-x)=0

We add all the numbers together, and all the variables

7x-(-1x+39)+12=0

We get rid of parentheses

7x+1x-39+12=0

We add all the numbers together, and all the variables

8x-27=0

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

8x=27

x=27/8

x=3+3/8

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