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2 x { 18 - ( 16 - 2 )} - {[ 3 + (3 + )] - [ 5 - ( 3 - 2)]}  

Răspuns :

2 x {18-(16-2)} - {[3+(3+0)] - [5- (3-2)]}
2x {18-14} - {[3+3] - [5 -1]}
2x  4 -{6-4}
8-2=6