x+(x+1)+(x+2)=-12

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Solution for x+(x+1)+(x+2)=-12 equation: 



x+(x+1)+(x+2)=-12

We move all terms to the left:

x+(x+1)+(x+2)-(-12)=0

We add all the numbers together, and all the variables

x+(x+1)+(x+2)+12=0

We get rid of parentheses

x+x+x+1+2+12=0

We add all the numbers together, and all the variables

3x+15=0

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

3x=-15

x=-15/3

x=-5

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