3-7x/y+9

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Solution for 3-7x/y+9 equation: 


x in (-oo:+oo)

3-((7*x)/y)+9 = 0

3-7*x*y^-1+9 = 0

12-7*x*y^-1 = 0 // - 12

-7*x*y^-1 = -12 // : -7*y^-1

x = -12/(-7*y^-1)

x = -12/(-7*y^-1)

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