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2/5 = (x-3)/9 // - (x-3)/9
2/5-((x-3)/9) = 0
(-1*(x-3))/9+2/5 = 0
(-1*5*(x-3))/(5*9)+(2*9)/(5*9) = 0
2*9-1*5*(x-3) = 0
33-5*x = 0
(33-5*x)/(5*9) = 0
(33-5*x)/(5*9) = 0 // * 5*9
33-5*x = 0
33-5*x = 0 // - 33
-5*x = -33 // : -5
x = -33/(-5)
x = 33/5
x = 33/5
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