-8=13-x

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Solution for -8=13-x equation: 



-8=13-x

We move all terms to the left:

-8-(13-x)=0

We add all the numbers together, and all the variables

-(-1x+13)-8=0

We get rid of parentheses

1x-13-8=0

We add all the numbers together, and all the variables

x-21=0

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

x=21

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