7.87=15.9/x

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Solution for 7.87=15.9/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7.87 = 15.9/x // - 15.9/x

7.87-(15.9/x) = 0

7.87-15.9*x^-1 = 0

-15.9*x^-1 = -7.87 // : -15.9

x^-1 = 0.49496855

-1 < 0

1/(x^1) = 0.49496855 // * x^1

1 = 0.49496855*x^1 // : 0.49496855

2.02033038 = x^1

x = 2.02033038

x = 2.02033038

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