-1=3+x

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Solution for -1=3+x equation: 



-1=3+x

We move all terms to the left:

-1-(3+x)=0

We add all the numbers together, and all the variables

-(x+3)-1=0

We get rid of parentheses

-x-3-1=0

We add all the numbers together, and all the variables

-1x-4=0

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

-x=4

x=4/-1

x=-4

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