7y=(2x-5)/x

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Solution for 7y=(2x-5)/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7*y = (2*x-5)/x // - (2*x-5)/x

7*y-((2*x-5)/x) = 0

(-1*(2*x-5))/x+7*y = 0

(-1*(2*x-5))/x+(7*x*y)/x = 0

7*x*y-1*(2*x-5) = 0

7*x*y-2*x+5 = 0

7*x*y-2*x+5 = 0

7*x*y+5 = 0 // - 5

7*x*y = -5 // : 7*y

x = -5/(7*y)

x+5/7*y^-1 = 0

(x+5/7*y^-1)/x = 0

(x+5/7*y^-1)/x = 0 // * x

x+5/7*y^-1 = 0

x+5/7*y^-1 = 0 // - 5/7*y^-1

x = -(5/7*y^-1)

x = -5/7*y^-1

x = -5/7*y^-1

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