2s=9+s

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Solution for 2s=9+s equation: 



2s=9+s

We move all terms to the left:

2s-(9+s)=0

We add all the numbers together, and all the variables

2s-(s+9)=0

We get rid of parentheses

2s-s-9=0

We add all the numbers together, and all the variables

s-9=0

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

s=9

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