-4/3=8/r

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Solution for -4/3=8/r equation: 


D( r )

r = 0

r = 0

r = 0

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

-4/3 = 8/r // - 8/r

-(8/r)-4/3 = 0

-8*r^-1-4/3 = 0

-8*r^-1 = 4/3 // : -8

r^-1 = -1/6

-1 < 0

1/(r^1) = -1/6 // * r^1

1 = -1/6*r^1 // : -1/6

-6 = r^1

r = -6

r = -6

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