y-1/(2x)=3

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Solution for y-1/(2x)=3 equation: 


D( x )

2*x = 0

2*x = 0

2*x = 0

2*x = 0 // : 2

x = 0

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

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

y-(1/(2*x))-3 = 0

(-1/2)*x^-1+y-3 = 0

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

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

-1 < 0

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

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

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

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

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

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