[tex]a \div b = 3 \\ rezulta \\ a = 3b \\ \\ b \div 2 = c \\ rezulta \\ b = 2c \\ \\ a = 3b \\ b = 2c \\ rezulta \\ a = 3 \times 2c \\ a = 6c[/tex]
[tex]a + b + c = 63 \\ 6c + 2c + c = 63\\ 9c = 63 \\ c = 63 \div 9 \\ c = 7[/tex]
[tex]a = 6c = 6 \times 7 = 42[/tex]
[tex]b = 2c = 2 \times 7 = 14[/tex]
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