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x in (-oo:+oo)
(i+2*w)/w-i = (4*i+3*w)/w+3*i // - (4*i+3*w)/w+3*i
(i+2*w)/w-((4*i+3*w)/w)-i-(3*i) = 0
(i+2*w)/w-((4*i+3*w)/w)-i-3*i = 0
(i+2*w)/w+(-1*(4*i+3*w))/w-i-3*i = 0
(i+2*w)/w+(-1*(4*i+3*w))/w+(-i*w)/w+(-3*i*w)/w = 0
i-1*(4*i+3*w)+2*w-i*w-3*i*w = 0
-3*i-w-(i*w)-3*i*w = 0
-3*i-w-4*i*w = 0
(-3*i-w-4*i*w)/w = 0
(-3*i-w-4*i*w)/w = 0 // * w
-3*i-w-4*i*w = 0
x belongs to the empty set
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