13/25=9/X

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Solution for 13/25=9/X equation: 


D( X )

X = 0

X = 0

X = 0

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

13/25 = 9/X // - 9/X

13/25-(9/X) = 0

13/25-9*X^-1 = 0

-9*X^-1 = -13/25 // : -9

X^-1 = 13/225

-1 < 0

1/(X^1) = 13/225 // * X^1

1 = 13/225*X^1 // : 13/225

225/13 = X^1

X = 225/13

X = 225/13

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