12+x=-2+9-x

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Solution for 12+x=-2+9-x equation: 



12+x=-2+9-x

We move all terms to the left:

12+x-(-2+9-x)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

x+1x-7+12=0

We add all the numbers together, and all the variables

2x+5=0

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

2x=-5

x=-5/2

x=-2+1/2

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