1/1-xx+1+3=3x+3x+12/(x+2)22x-3-1=x2+102x-33/x-1x-2-3+x=1x-24/x-21-x=1x-1-1-2x5/2x-2-1x=2x2-2x6/x-1x+2-xx-2=5x-8x2-4
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