Question

6-[(6+6×6)-(6+6:6:7)]+6:6-6:6=

Answer 1

6-[(6+36)-(6+1:7)]+1-1=
6-[42-(6+1/7)]+1-1=
6-[42-(42/7+1/7)]+1-1=
6-(42-41/7)+1-1=
6-(294/7-41/7)+1-1=
6-253/7+1-1=
42/7-253/7+7/7-7/7= (deoarece avem numitor comun pe 7, putem sa nu-l mai scriem)
42-253+7-7=
-211+7-7=-211