7/10=3/X

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Solution for 7/10=3/X equation: 


D( X )

X = 0

X = 0

X = 0

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

7/10 = 3/X // - 3/X

7/10-(3/X) = 0

7/10-3*X^-1 = 0

-3*X^-1 = -7/10 // : -3

X^-1 = 7/30

-1 < 0

1/(X^1) = 7/30 // * X^1

1 = 7/30*X^1 // : 7/30

30/7 = X^1

X = 30/7

X = 30/7

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