5/7+9/x=7/8

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Solution for 5/7+9/x=7/8 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x+5/7 = 7/8 // - 7/8

9/x+5/7-(7/8) = 0

9/x+5/7-7/8 = 0

9*x^-1 = 9/56 // : 9

x^-1 = 1/56

-1 < 0

1/(x^1) = 1/56 // * x^1

1 = 1/56*x^1 // : 1/56

56 = x^1

x = 56

x = 56

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