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x/(500+x)=0.2
We move all terms to the left:
x/(500+x)-(0.2)=0
Domain of the equation: (500+x)!=0We add all the numbers together, and all the variables
We move all terms containing x to the left, all other terms to the right
x!=-500
x∈R
x/(x+500)-(0.2)=0
We add all the numbers together, and all the variables
x/(x+500)-0.2=0
We multiply all the terms by the denominator
x-(0.2)*(x+500)=0
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