-21x+12=-6-3x-12

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Solution for -21x+12=-6-3x-12 equation: 



-21x+12=-6-3x-12

We move all terms to the left:

-21x+12-(-6-3x-12)=0

We add all the numbers together, and all the variables

-21x-(-3x-18)+12=0

We get rid of parentheses

-21x+3x+18+12=0

We add all the numbers together, and all the variables

-18x+30=0

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

-18x=-30

x=-30/-18

x=1+2/3

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