7/2=3/y-4

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Solution for 7/2=3/y-4 equation: 


D( y )

y = 0

y = 0

y = 0

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

7/2 = 3/y-4 // - 3/y-4

7/2-(3/y)+4 = 0

7/2-3*y^-1+4 = 0

-3*y^-1 = -15/2 // : -3

y^-1 = 5/2

-1 < 0

1/(y^1) = 5/2 // * y^1

1 = 5/2*y^1 // : 5/2

2/5 = y^1

y = 2/5

y = 2/5

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