-a-1=-1-a

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Solution for -a-1=-1-a equation: 



-a-1=-1-a

We move all terms to the left:

-a-1-(-1-a)=0

We add all the numbers together, and all the variables

-a-(-1a-1)-1=0

We add all the numbers together, and all the variables

-1a-(-1a-1)-1=0

We get rid of parentheses

-1a+1a+1-1=0

We add all the numbers together, and all the variables

=0

a=0/1

a=0

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