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3/x=0.4
We move all terms to the left:
3/x-(0.4)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
3/x-0.4=0
We multiply all the terms by the denominator
-(0.4)*x+3=0
We multiply parentheses
-0.4x+3=0
We move all terms containing x to the left, all other terms to the right
-0.4x=-3
x=-3/-0.4
x=7+0.2/0.4
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