4/5/y=3/7/3

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Solution for 4/5/y=3/7/3 equation: 


D( y )

y = 0

y = 0

y = 0

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

(4/5)/y = (3/7)/3 // - (3/7)/3

(4/5)/y-((3/7)/3) = 0

(4/5)/y-1/7 = 0

4/5*y^-1 = 1/7 // : 4/5

y^-1 = 5/28

-1 < 0

1/(y^1) = 5/28 // * y^1

1 = 5/28*y^1 // : 5/28

28/5 = y^1

y = 28/5

y = 28/5

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