Răspuns :
[tex](20 + 6 + 2 \div (63 \div 9 - 5)) \div 9 = \\ (20 + 6 + 2 \div (7 - 5)) \div 9 = \\ (20 + 6 + 2 \div 2) \div 9 = \\ (20 + 6 + 1) \div 9 = \\ (26 + 1) \div 9 = \\ 27 \div 9 = \\ 3[/tex]
Răspuns:
[20+6+2:(63:9-5)]:9=
=[20+6+2(7-5)]:9=
=(20+6+2:2):9=
=(20+6+1):9=
=(26+1):9=
=27:9=
=3