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2/100x+5/200(x-12000)=690
We move all terms to the left:
2/100x+5/200(x-12000)-(690)=0
Domain of the equation: 100x!=0
x!=0/100
x!=0
x∈R
Domain of the equation: 200(x-12000)!=0We calculate fractions
x∈R
(400xx/(20000x^2x+500x/(20000x^2x-690=0
We can not solve this equation
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