7x/9+y/9

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Solution for 7x/9+y/9 equation: 


x in (-oo:+oo)

(7*x)/9+y/9 = 0

7/9*x+1/9*y = 0 // - 1/9*y

7/9*x = -(1/9*y) // : 7/9

x = (-(1/9*y))/7/9

x = -1/7*y

x = -1/7*y

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