-x+1=x+21=

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



-x+1=x+21=

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-1x-x-21+1=0

We add all the numbers together, and all the variables

-2x-20=0

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

-2x=20

x=20/-2

x=-10

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