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810/x=1.8
We move all terms to the left:
810/x-(1.8)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
810/x-1.8=0
We multiply all the terms by the denominator
-(1.8)*x+810=0
We multiply parentheses
-1.8x+810=0
We move all terms containing x to the left, all other terms to the right
-1.8x=-810
x=-810/-1.8
x=+450
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