(12/x)-(3/y)

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Solution for (12/x)-(3/y) equation: 


D( x )

x = 0

x = 0

x = 0

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

12/x-(3/y) = 0

12/x-3*y^-1 = 0

12*x^-1 = -(-3*y^-1) // : 12

x^-1 = (y^-1)/4

-1 < 0

1/(x^1) = (y^-1)/4 // * x^1

1 = x^1*((y^-1)/4) // : (y^-1)/4

4*y = x^1

x = 4*y

x = 4*y

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