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a = 2007 +{2006-[(6+6:6) :7 +(8+8:8):9 ]+2006}:2006

Răspuns :

a=2007+{2006-[(6+6:6):7+(8+8:8):9]+2006}:2006=
2007+{2006-[( 6+1):7+(8+1):9]+2006}:2006=2007+{2006-[7:7+9:9]+2006}:2006=
{2006-2+2006}:2006=
4010:2006=1. (9)