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4000/x=0.3
We move all terms to the left:
4000/x-(0.3)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
4000/x-0.3=0
We multiply all the terms by the denominator
-(0.3)*x+4000=0
We multiply parentheses
-0.3x+4000=0
We move all terms containing x to the left, all other terms to the right
-0.3x=-4000
x=-4000/-0.3
x=13333+0.10000000000036/0.3
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