5/y+1/5=9/y

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Solution for 5/y+1/5=9/y equation:


D( y )

y = 0

y = 0

y = 0

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

5/y+1/5 = 9/y // - 9/y

5/y-(9/y)+1/5 = 0

5/y-9*y^-1+1/5 = 0

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

y^-1 = 1/20

-1 < 0

1/(y^1) = 1/20 // * y^1

1 = 1/20*y^1 // : 1/20

20 = y^1

y = 20

y = 20

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