3/7=-4/x+5

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Solution for 3/7=-4/x+5 equation: 


D( x )

x = 0

x = 0

x = 0

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

3/7 = 5-4/x // - 5-4/x

3/7-(-4/x)-5 = 0

4*x^-1+3/7-5 = 0

4*x^-1 = 32/7 // : 4

x^-1 = 8/7

-1 < 0

1/(x^1) = 8/7 // * x^1

1 = 8/7*x^1 // : 8/7

7/8 = x^1

x = 7/8

x = 7/8

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