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x in (-oo:+oo)
y-(8/5) = 2*(x-3) // - 2*(x-3)
y-(2*(x-3))-(8/5) = 0
y-2*(x-3)-8/5 = 0
(-2*5*(x-3))/5+(5*y)/5-8/5 = 0
5*y-2*5*(x-3)-8 = 0
5*y-10*x-8+30 = 0
5*y-10*x+22 = 0
(5*y-10*x+22)/5 = 0
(5*y-10*x+22)/5 = 0 // * 5
5*y-10*x+22 = 0
5*y-10*x+22 = 0 // - 5*y+22
-10*x = -(5*y+22) // : -10
x = (-(5*y+22))/(-10)
x = (5*y+22)/10
x = (5*y+22)/10
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