4/y=8/7

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Solution for 4/y=8/7 equation: 


D( y )

y = 0

y = 0

y = 0

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

4/y = 8/7 // - 8/7

4/y-(8/7) = 0

4/y-8/7 = 0

4*y^-1 = 8/7 // : 4

y^-1 = 2/7

-1 < 0

1/(y^1) = 2/7 // * y^1

1 = 2/7*y^1 // : 2/7

7/2 = y^1

y = 7/2

y = 7/2

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