0.4=28x/0.4x^2+1.3

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Solution for 0.4=28x/0.4x^2+1.3 equation: 



0.4=28x/0.4x^2+1.3

We move all terms to the left:

0.4-(28x/0.4x^2+1.3)=0



Domain of the equation: 0.4x^2+1.3)!=0

x∈R



We get rid of parentheses

-28x/0.4x^2-1.3+0.4=0

We multiply all the terms by the denominator


-28x-(1.3)*0.4x^2+(0.4)*0.4x^2=0

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