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(1/4)*(13*x+6) = (1/4)*(6*y-8) // - (1/4)*(6*y-8)
(1/4)*(13*x+6)-((1/4)*(6*y-8)) = 0
(1/4)*(13*x+6)+(-1/4)*(6*y-8) = 0
1/4*(13*x+6)-1/4*(6*y-8) = 0
1/4*(13*x+6)-1/4*(6*y-8) = 0
13/4*x-3/2*y+7/2 = 0
13/4*x-3/2*y+7/2 = 0
13/4*x-3/2*y+7/2 = 0 // - 7/2-3/2*y
13/4*x = -(7/2-3/2*y) // : 13/4
x = (-(7/2-3/2*y))/13/4
x = -4/13*(7/2-3/2*y)
x = -4/13*(7/2-3/2*y)
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