7/x=12/15

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Solution for 7/x=12/15 equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x = 12/15 // - 12/15

7/x-(12/15) = 0

7/x-4/5 = 0

7*x^-1 = 4/5 // : 7

x^-1 = 4/35

-1 < 0

1/(x^1) = 4/35 // * x^1

1 = 4/35*x^1 // : 4/35

35/4 = x^1

x = 35/4

x = 35/4

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