2+9/r-3=3r/r-3

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Solution for 2+9/r-3=3r/r-3 equation: 


D( r )

r = 0

r = 0

r = 0

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

9/r-3+2 = (3*r)/r-3 // - (3*r)/r-3

9/r-((3*r)/r)-3+2+3 = 0

9/r-3-3+2+3 = 0

9*r^-1 = 1 // : 9

r^-1 = 1/9

-1 < 0

1/(r^1) = 1/9 // * r^1

1 = 1/9*r^1 // : 1/9

9 = r^1

r = 9

r = 9

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