-12x-2=-9x+21

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Solution for -12x-2=-9x+21 equation: 



-12x-2=-9x+21

We move all terms to the left:

-12x-2-(-9x+21)=0

We get rid of parentheses

-12x+9x-21-2=0

We add all the numbers together, and all the variables

-3x-23=0

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

-3x=23

x=23/-3

x=-7+2/3

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