xx2-1=-20

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Solution for xx2-1=-20 equation: 



xx2-1=-20

We move all terms to the left:

xx2-1-(-20)=0

We add all the numbers together, and all the variables

xx2+19=0

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

xx2=-19

x=-19/1

x=-19

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