Réponse :
Explications étape par étape :
Bonsoir
D= 40 - 19 × (23 - (7 - 3) × 7 )
D = 40 - 19 × (23 - 4 × 7 )
D= 40 - 19 × (23 - 28 )
D = 40 - 19 × (-5)
D = 40 - 19 × (-5)
D = 40 + 95
D = 135
E = ( 65 - 18/(2×4,5) ) - (25 - (9-5))
E = ( 65 - 18/9 ) - (25 - 4)
E = (65 - 2) - 21
E = 63 - 21
E = 42
F = 5 × (9+ 3) / (2 + 2 × 2 × 2)
F = 5 × 12 / ( 2 + 8)
F = 60/10
F = 6
