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x in (-oo:+oo)
y = (-2/11)*(x+12) // - (-2/11)*(x+12)
y-((-2/11)*(x+12)) = 0
(2/11)*(x+12)+y = 0
2/11*(x+12)+y = 0
2/11*(x+12)+y = 0
2/11*x+y+24/11 = 0
2/11*x+y+24/11 = 0
2/11*x+y+24/11 = 0 // - y+24/11
2/11*x = -(y+24/11) // : 2/11
x = (-(y+24/11))/2/11
x = -11/2*(y+24/11)
x = -11/2*(y+24/11)
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