3-[7-(1)x(4-9)] pouviez vous m’aider svp merci d’avance

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Grade: Education Subject: mathematiques
3-[7-(1)x(4-9)] pouviez vous m’aider svp merci d’avance
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(122)

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3-[7-(1)x(4-9)]

= 3 - ( 7 - 1 * - 5 )

= 3 - ( 7 + 5)

= 2 - 12

= - 10