12-12+2x=x+9

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



12-12+2x=x+9

We move all terms to the left:

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

We add all the numbers together, and all the variables

2x-(x+9)=0

We get rid of parentheses

2x-x-9=0

We add all the numbers together, and all the variables

x-9=0

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

x=9

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