3/5=15/y

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Solution for 3/5=15/y equation: 


D( y )

y = 0

y = 0

y = 0

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

3/5 = 15/y // - 15/y

3/5-(15/y) = 0

3/5-15*y^-1 = 0

-15*y^-1 = -3/5 // : -15

y^-1 = 1/25

-1 < 0

1/(y^1) = 1/25 // * y^1

1 = 1/25*y^1 // : 1/25

25 = y^1

y = 25

y = 25

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