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x in (-oo:+oo)
(2*x)/4 = (5*x+8)/2 // - (5*x+8)/2
(2*x)/4-((5*x+8)/2) = 0
(-1*(5*x+8))/2+x/2 = 0
x-1*(5*x+8) = 0
-4*x-8 = 0
(-4*x-8)/2 = 0
(-4*x-8)/2 = 0 // * 2
-4*x-8 = 0
-4*x-8 = 0 // + 8
-4*x = 8 // : -4
x = 8/(-4)
x = -2
x = -2
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