3/x+4-7=18/x+4

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Solution for 3/x+4-7=18/x+4 equation: 


D( x )

x = 0

x = 0

x = 0

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

3/x-7+4 = 18/x+4 // - 18/x+4

3/x-(18/x)-7-4+4 = 0

3/x-18*x^-1-7-4+4 = 0

-15*x^-1 = 7 // : -15

x^-1 = -7/15

-1 < 0

1/(x^1) = -7/15 // * x^1

1 = -7/15*x^1 // : -7/15

-15/7 = x^1

x = -15/7

x = -15/7

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