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merci d'avence
[tex]a = (2 \div 6) + 78 \\ [/tex]
[tex]b = (5 + 6) \times 25 + (47)[/tex]
[tex]f = 55(4 + 5)(58) + 24[/tex]
[tex]j = 65(48 - 8)(74)[/tex]