2x+221=12x-9

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Solution for 2x+221=12x-9 equation: 



2x+221=12x-9

We move all terms to the left:

2x+221-(12x-9)=0

We get rid of parentheses

2x-12x+9+221=0

We add all the numbers together, and all the variables

-10x+230=0

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

-10x=-230

x=-230/-10

x=+23

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