x+9=9+2x

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



x+9=9+2x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

x-2x-9+9=0

We add all the numbers together, and all the variables

-x=0

x=0/-1

x=0

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