11/20=9/C

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Solution for 11/20=9/C equation: 


D( C )

C = 0

C = 0

C = 0

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

11/20 = 9/C // - 9/C

11/20-(9/C) = 0

11/20-9*C^-1 = 0

-9*C^-1 = -11/20 // : -9

C^-1 = 11/180

-1 < 0

1/(C^1) = 11/180 // * C^1

1 = 11/180*C^1 // : 11/180

180/11 = C^1

C = 180/11

C = 180/11

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