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0.2+0.5x/x=0.9
We move all terms to the left:
0.2+0.5x/x-(0.9)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
0.5x/x-0.7=0
We multiply all the terms by the denominator
0.5x-(0.7)*x=0
We multiply parentheses
0.5x-0.7x=0
We add all the numbers together, and all the variables
-0.2x=0
x=0/-0.2
x=0
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