x+9=2x+11

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Solution for x+9=2x+11 equation: 



x+9=2x+11

We move all terms to the left:

x+9-(2x+11)=0

We get rid of parentheses

x-2x-11+9=0

We add all the numbers together, and all the variables

-1x-2=0

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

-x=2

x=2/-1

x=-2

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