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(2/3)*(x-(1/9)) = (-2/3)*(y-(1/6)) // - (-2/3)*(y-(1/6))
(2/3)*(x-(1/9))-((-2/3)*(y-(1/6))) = 0
(2/3)*(x-1/9)+(2/3)*(y-1/6) = 0
2/3*(x-1/9)+2/3*(y-1/6) = 0
2/3*(x-1/9)+2/3*(y-1/6) = 0
2/3*x+2/3*y-5/27 = 0
2/3*x+2/3*y-5/27 = 0
2/3*x+2/3*y-5/27 = 0 // - 2/3*y-5/27
2/3*x = -(2/3*y-5/27) // : 2/3
x = (-(2/3*y-5/27))/2/3
x = 3/2*(5/27-(2/3*y))
x = 3/2*(5/27-(2/3*y))
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