5/7=10/x+2

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Solution for 5/7=10/x+2 equation: 


D( x )

x = 0

x = 0

x = 0

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

5/7 = 10/x+2 // - 10/x+2

5/7-(10/x)-2 = 0

5/7-10*x^-1-2 = 0

-10*x^-1 = 9/7 // : -10

x^-1 = -9/70

-1 < 0

1/(x^1) = -9/70 // * x^1

1 = -9/70*x^1 // : -9/70

-70/9 = x^1

x = -70/9

x = -70/9

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