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x in (-oo:+oo)
(2*x+4)/4 = 2*x-(x/2)+4 // - 2*x-(x/2)+4
(2*x+4)/4-(2*x)+x/2-4 = 0
(2*x+4)/4-2*x+x/2-4 = 0
(2*(2*x+4))/(2*4)+(-2*2*4*x)/(2*4)+(4*x)/(2*4)+(-4*2*4)/(2*4) = 0
2*(2*x+4)-2*2*4*x+4*x-4*2*4 = 0
4*x-12*x-32+8 = 0
8-8*x-32 = 0
-8*x-24 = 0
(-8*x-24)/(2*4) = 0
(-8*x-24)/(2*4) = 0 // * 2*4
-8*x-24 = 0
-8*x-24 = 0 // + 24
-8*x = 24 // : -8
x = 24/(-8)
x = -3
x = -3
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