-3=8+x

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Solution for -3=8+x equation: 



-3=8+x

We move all terms to the left:

-3-(8+x)=0

We add all the numbers together, and all the variables

-(x+8)-3=0

We get rid of parentheses

-x-8-3=0

We add all the numbers together, and all the variables

-1x-11=0

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

-x=11

x=11/-1

x=-11

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