-(x+1)=-21

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Solution for -(x+1)=-21 equation: 



-(x+1)=-21

We move all terms to the left:

-(x+1)-(-21)=0

We add all the numbers together, and all the variables

-(x+1)+21=0

We get rid of parentheses

-x-1+21=0

We add all the numbers together, and all the variables

-1x+20=0

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

-x=-20

x=-20/-1

x=+20

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