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x in (-oo:+oo)
y = 3*(2*x-1)-(2*(5/3)*x) // - 3*(2*x-1)-(2*(5/3)*x)
2*(5/3)*x-(3*(2*x-1))+y = 0
2*(5/3)*x-3*(2*x-1)+y = 0
(10*x)/3-3*(2*x-1)+y = 0
(-3*3*(2*x-1))/3+(10*x)/3+(3*y)/3 = 0
10*x-3*3*(2*x-1)+3*y = 0
3*y-8*x+9 = 0
(3*y-8*x+9)/3 = 0
(3*y-8*x+9)/3 = 0 // * 3
3*y-8*x+9 = 0
3*y-8*x+9 = 0 // - 3*y+9
-8*x = -(3*y+9) // : -8
x = (-(3*y+9))/(-8)
x = (3*y+9)/8
x = (3*y+9)/8
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