5/r=6/8

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Solution for 5/r=6/8 equation: 


D( r )

r = 0

r = 0

r = 0

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

5/r = 6/8 // - 6/8

5/r-(6/8) = 0

5/r-3/4 = 0

5*r^-1 = 3/4 // : 5

r^-1 = 3/20

-1 < 0

1/(r^1) = 3/20 // * r^1

1 = 3/20*r^1 // : 3/20

20/3 = r^1

r = 20/3

r = 20/3

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