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0.2=s-81/s*100
We move all terms to the left:
0.2-(s-81/s*100)=0
Domain of the equation: s*100)!=0We add all the numbers together, and all the variables
s!=0/1
s!=0
s∈R
-(+s-81/s*100)+0.2=0
We get rid of parentheses
-s+81/s*100+0.2=0
We multiply all the terms by the denominator
-s*s*100+(0.2)*s*100+81=0
Wy multiply elements
-100s^2*1+(0.2)*s*100+81=0
Wy multiply elements
-100s^2+(0.2)*s*100+81=0
We move all terms containing s to the left, all other terms to the right
-100s^2+(0.2)*s*100=-81
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