3x=109-9x

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Solution for 3x=109-9x equation: 



3x=109-9x

We move all terms to the left:

3x-(109-9x)=0

We add all the numbers together, and all the variables

3x-(-9x+109)=0

We get rid of parentheses

3x+9x-109=0

We add all the numbers together, and all the variables

12x-109=0

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

12x=109

x=109/12

x=9+1/12

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