Aider moi svp Calculer les expressions suivantes sur votre copie en indiquant les étapes :
A = 2 + 3 x ( 15 – 11 )
B = - 4 + 3 – (-5) + (-1)
A = 2 + 3 x ( 15 – 11 )
B = - 4 + 3 – (-5) + (-1)
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Verified answer
A = 2 + 3 x ( 15 – 11 ) = 2 + 3 x 4 = 2 + 12 = 14
B = - 4 + 3 – (-5) + (-1) = - 4 + 3 + 5 - 1 = - 4 - 1 + 3 + 5 = - 5 + 8 = + 3
Verified answer
A= 2 + 3 x (15 - 11)
= 2 + 3 × 4
= 2 + 12
= 14
B = -4 + 3 - (-5) + (-1)
= -4 + 3 + 5 − 1
= -1 + 5 - 1
= 4 - 1 = 3