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0=x+8x^-2
We move all terms to the left:
0-(x+8x^-2)=0
We add all the numbers together, and all the variables
-(x+8x^-2)=0
We get rid of parentheses
-x-8x^+2=0
We add all the numbers together, and all the variables
-9x+2=0
We move all terms containing x to the left, all other terms to the right
-9x=-2
x=-2/-9
x=2/9
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