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x in (-oo:+oo)
y-5 = (-14/3)*(x+6) // - (-14/3)*(x+6)
y-((-14/3)*(x+6))-5 = 0
(14/3)*(x+6)+y-5 = 0
14/3*(x+6)+y-5 = 0
14/3*(x+6)+y-5 = 0
14/3*x+y-5+28 = 0
14/3*x+y+23 = 0
14/3*x+y+23 = 0
14/3*x+y+23 = 0 // - y+23
14/3*x = -(y+23) // : 14/3
x = (-(y+23))/14/3
x = -3/14*(y+23)
x = -3/14*(y+23)
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