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

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Solution for (x+3)+x+(x-3)=9 equation: 



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

x+x+x+3-3-9=0

We add all the numbers together, and all the variables

3x-9=0

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

3x=9

x=9/3

x=3

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