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x in (-oo:+oo)
y = (11-(3*x))/(-8) // - (11-(3*x))/(-8)
y-((11-(3*x))/(-8)) = 0
y-((11-3*x)/(-8)) = 0
(-1*(11-3*x))/(-8)+y = 0
(-1*(11-3*x))/(-8)+(-8*y)/(-8) = 0
-1*(11-3*x)-8*y = 0
3*x-8*y-11 = 0
(3*x-8*y-11)/(-8) = 0
(3*x-8*y-11)/(-8) = 0 // * -8
3*x-8*y-11 = 0
3*x-8*y-11 = 0 // + -8*y-11
3*x = -(-8*y-11) // : 3
x = (-(-8*y-11))/3
x = (11-(-8*y))/3
x = (11-(-8*y))/3
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