5000/7=78000/x

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Solution for 5000/7=78000/x equation: 


D( x )

x = 0

x = 0

x = 0

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

5000/7 = 78000/x // - 78000/x

5000/7-(78000/x) = 0

5000/7-78000*x^-1 = 0

-78000*x^-1 = -5000/7 // : -78000

x^-1 = 5/546

-1 < 0

1/(x^1) = 5/546 // * x^1

1 = 5/546*x^1 // : 5/546

546/5 = x^1

x = 546/5

x = 546/5

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