3/x=15/40

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Solution for 3/x=15/40 equation: 


D( x )

x = 0

x = 0

x = 0

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

3/x = 15/40 // - 15/40

3/x-(15/40) = 0

3/x-3/8 = 0

3*x^-1 = 3/8 // : 3

x^-1 = 1/8

-1 < 0

1/(x^1) = 1/8 // * x^1

1 = 1/8*x^1 // : 1/8

8 = x^1

x = 8

x = 8

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