30/x=40/x

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Solution for 30/x=40/x equation: 


D( x )

x = 0

x = 0

x = 0

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

30/x = 40/x // - 40/x

30/x-(40/x) = 0

30/x-40*x^-1 = 0

-10*x^-1 = 0 // : -10

x^-1 = 0

x naleu017Cy do O

x belongs to the empty set

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