12=-2x-4x-6

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Solution for 12=-2x-4x-6 equation: 



12=-2x-4x-6

We move all terms to the left:

12-(-2x-4x-6)=0

We add all the numbers together, and all the variables

-(-6x-6)+12=0

We get rid of parentheses

6x+6+12=0

We add all the numbers together, and all the variables

6x+18=0

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

6x=-18

x=-18/6

x=-3

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