Răspuns:
1
[tex]6 \times 7 = 42 \\ [/tex]
[tex]42 + 7 = 49[/tex]
[tex]49 \div 7 = 7[/tex]
[tex]7 \times 9 = 63[/tex]
[tex]63 - 7 = 56[/tex]
[tex]56 \div 7 = 8[/tex]
2
[tex]6 \times 9 = 54[/tex]
[tex]54 + 2 = 56[/tex]
[tex]56 \div 7 = 8[/tex]
[tex]8 \times 6 = 48[/tex]
[tex]48 - 6 = 42[/tex]
[tex]42 \div 6 = 7[/tex]
