9/x+1=45/x-7

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Solution for 9/x+1=45/x-7 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x+1 = 45/x-7 // - 45/x-7

9/x-(45/x)+1+7 = 0

9/x-45*x^-1+1+7 = 0

-36*x^-1 = -8 // : -36

x^-1 = 2/9

-1 < 0

1/(x^1) = 2/9 // * x^1

1 = 2/9*x^1 // : 2/9

9/2 = x^1

x = 9/2

x = 9/2

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