398-(-319)=x

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Solution for 398-(-319)=x equation: 



398-(-319)=x

We move all terms to the left:

398-(-319)-(x)=0

We add all the numbers together, and all the variables

-1x+717=0

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

-x=-717

x=-717/-1

x=+717

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