3+17=9+x

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Solution for 3+17=9+x equation: 



3+17=9+x

We move all terms to the left:

3+17-(9+x)=0

We add all the numbers together, and all the variables

-(x+9)+3+17=0

We add all the numbers together, and all the variables

-(x+9)+20=0

We get rid of parentheses

-x-9+20=0

We add all the numbers together, and all the variables

-1x+11=0

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

-x=-11

x=-11/-1

x=+11

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