y/x-9=4/7

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Solution for y/x-9=4/7 equation: 


D( x )

x = 0

x = 0

x = 0

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

y/x-9 = 4/7 // - 4/7

y/x-(4/7)-9 = 0

y/x-4/7-9 = 0

x^-1*y = 67/7 // : y

x^-1 = 67/7/y

-1 < 0

1/(x^1) = 67/7/y // * x^1

1 = x^1*(67/7/y) // : 67/7/y

7/67*y = x^1

x = 7/67*y

x = 7/67*y

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