9/x+1=18/x+7

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Solution for 9/x+1=18/x+7 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x+1 = 18/x+7 // - 18/x+7

9/x-(18/x)-7+1 = 0

9/x-18*x^-1-7+1 = 0

-9*x^-1 = 6 // : -9

x^-1 = -2/3

-1 < 0

1/(x^1) = -2/3 // * x^1

1 = -2/3*x^1 // : -2/3

-3/2 = x^1

x = -3/2

x = -3/2

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