5x/x-7-15/x-7=9

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Solution for 5x/x-7-15/x-7=9 equation: 


D( x )

x = 0

x = 0

x = 0

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

(5*x)/x-(15/x)-7-7 = 9 // - 9

(5*x)/x-(15/x)-9-7-7 = 0

(5*x)/x-15*x^-1-9-7-7 = 0

-15*x^-1 = 18 // : -15

x^-1 = -6/5

-1 < 0

1/(x^1) = -6/5 // * x^1

1 = -6/5*x^1 // : -6/5

-5/6 = x^1

x = -5/6

x = -5/6

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