7/x+3/4=5/x

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Solution for 7/x+3/4=5/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x+3/4 = 5/x // - 5/x

7/x-(5/x)+3/4 = 0

7/x-5*x^-1+3/4 = 0

2*x^-1 = -3/4 // : 2

x^-1 = -3/8

-1 < 0

1/(x^1) = -3/8 // * x^1

1 = -3/8*x^1 // : -3/8

-8/3 = x^1

x = -8/3

x = -8/3

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