-2x+1=-20

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Solution for -2x+1=-20 equation: 



-2x+1=-20

We move all terms to the left:

-2x+1-(-20)=0

We add all the numbers together, and all the variables

-2x+21=0

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

-2x=-21

x=-21/-2

x=10+1/2

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