19/r=152/4

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Solution for 19/r=152/4 equation: 


D( r )

r = 0

r = 0

r = 0

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

19/r = 152/4 // - 152/4

19/r-(152/4) = 0

19/r-38 = 0

19*r^-1 = 38 // : 19

r^-1 = 2

-1 < 0

1/(r^1) = 2 // * r^1

1 = 2*r^1 // : 2

1/2 = r^1

r = 1/2

r = 1/2

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