2/3=20/X

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Solution for 2/3=20/X equation: 


D( X )

X = 0

X = 0

X = 0

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

2/3 = 20/X // - 20/X

2/3-(20/X) = 0

2/3-20*X^-1 = 0

-20*X^-1 = -2/3 // : -20

X^-1 = 1/30

-1 < 0

1/(X^1) = 1/30 // * X^1

1 = 1/30*X^1 // : 1/30

30 = X^1

X = 30

X = 30

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