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Sagot :

A=(-7)+7x(-3)+5x[-5+(-2)]
   =-7-21+5(-7)
   =-28-35
   =-63

Bonsoir
A=(-7)+7x(-3)+5xcrochet-5+(-2)crochet
A = (-7) +7 x -3 + 5 x [-5 +(-2)]
= (-7) + 7x-3 +5x -7
= (-7) + -21 + (-35)
= -7-21-35
= -63


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