12+7x=x-12

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



12+7x=x-12

We move all terms to the left:

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

We get rid of parentheses

7x-x+12+12=0

We add all the numbers together, and all the variables

6x+24=0

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

6x=-24

x=-24/6

x=-4

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