(9/x-1)-(7/x-3)=-4

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Solution for (9/x-1)-(7/x-3)=-4 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

9/x-(7/x)-1+3 = -4 // + 4

9/x-(7/x)-1+3+4 = 0

9/x-7*x^-1-1+3+4 = 0

2*x^-1 = -6 // : 2

x^-1 = -3

-1 < 0

1/(x^1) = -3 // * x^1

1 = -3*x^1 // : -3

-1/3 = x^1

x = -1/3

x = -1/3

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