12x=120-x

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Solution for 12x=120-x equation: 



12x=120-x

We move all terms to the left:

12x-(120-x)=0

We add all the numbers together, and all the variables

12x-(-1x+120)=0

We get rid of parentheses

12x+1x-120=0

We add all the numbers together, and all the variables

13x-120=0

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

13x=120

x=120/13

x=9+3/13

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