6/r-7=13

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Solution for 6/r-7=13 equation: 


D( r )

r = 0

r = 0

r = 0

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

6/r-7 = 13 // - 13

6/r-13-7 = 0

6*r^-1 = 20 // : 6

r^-1 = 10/3

-1 < 0

1/(r^1) = 10/3 // * r^1

1 = 10/3*r^1 // : 10/3

3/10 = r^1

r = 3/10

r = 3/10

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