-221+9x=115-3x

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Solution for -221+9x=115-3x equation: 



-221+9x=115-3x

We move all terms to the left:

-221+9x-(115-3x)=0

We add all the numbers together, and all the variables

9x-(-3x+115)-221=0

We get rid of parentheses

9x+3x-115-221=0

We add all the numbers together, and all the variables

12x-336=0

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

12x=336

x=336/12

x=28

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