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x in (-oo:+oo)
y-8 = (-2/11)*(x+12) // - (-2/11)*(x+12)
y-((-2/11)*(x+12))-8 = 0
(2/11)*(x+12)+y-8 = 0
2/11*(x+12)+y-8 = 0
2/11*(x+12)+y-8 = 0
2/11*x+y-8+24/11 = 0
2/11*x+y-64/11 = 0
2/11*x+y-64/11 = 0
2/11*x+y-64/11 = 0 // - y-64/11
2/11*x = -(y-64/11) // : 2/11
x = (-(y-64/11))/2/11
x = 11/2*(64/11-y)
x = 11/2*(64/11-y)
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