7-3+1-(2-9)=x

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Solution for 7-3+1-(2-9)=x equation: 



7-3+1-(2-9)=x

We move all terms to the left:

7-3+1-(2-9)-(x)=0

We add all the numbers together, and all the variables

-x+7-3+1-(-7)=0

We add all the numbers together, and all the variables

-1x+12=0

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

-x=-12

x=-12/-1

x=+12

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