7/4=105/X

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Solution for 7/4=105/X equation: 


D( X )

X = 0

X = 0

X = 0

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

7/4 = 105/X // - 105/X

7/4-(105/X) = 0

7/4-105*X^-1 = 0

-105*X^-1 = -7/4 // : -105

X^-1 = 1/60

-1 < 0

1/(X^1) = 1/60 // * X^1

1 = 1/60*X^1 // : 1/60

60 = X^1

X = 60

X = 60

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