-x-6=-3x+12

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Solution for -x-6=-3x+12 equation: 



-x-6=-3x+12

We move all terms to the left:

-x-6-(-3x+12)=0

We add all the numbers together, and all the variables

-1x-(-3x+12)-6=0

We get rid of parentheses

-1x+3x-12-6=0

We add all the numbers together, and all the variables

2x-18=0

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

2x=18

x=18/2

x=9

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