7-3x=9/x

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Solution for 7-3x=9/x equation: 



7-3x=9/x

We move all terms to the left:

7-3x-(9/x)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-3x-(+9/x)+7=0

We get rid of parentheses

-3x-9/x+7=0

We multiply all the terms by the denominator


-3x*x+7*x-9=0

We add all the numbers together, and all the variables

7x-3x*x-9=0

Wy multiply elements

-3x^2+7x-9=0

a = -3; b = 7; c = -9;
Δ = b2-4ac
Δ = 72-4·(-3)·(-9)
Δ = -59
Delta is less than zero, so there is no solution for the equation

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