1=x-(-20)

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Solution for 1=x-(-20) equation: 



1=x-(-20)

We move all terms to the left:

1-(x-(-20))=0



We calculate terms in parentheses: -(x-(-20)), so:

x-(-20)

We add all the numbers together, and all the variables

x+20

Back to the equation:

-(x+20)



We get rid of parentheses

-x-20+1=0

We add all the numbers together, and all the variables

-1x-19=0

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

-x=19

x=19/-1

x=-19

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