7/x-3=12/x-8

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Solution for 7/x-3=12/x-8 equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x-3 = 12/x-8 // - 12/x-8

7/x-(12/x)-3+8 = 0

7/x-12*x^-1-3+8 = 0

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

x^-1 = 1

-1 < 0

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

1 = 1*x^1 // : 1

1 = x^1

x = 1

x = 1

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