bonjour
1) -5/2
2) 3 x (-5/2) - 1 = - 15/2 - 2/2 = - 17/2
3) 7 + 2 x (-5/2) = 7 - 5 = 2
4) 2 x (-17/2) = -17
5) = - 17
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bonjour
1) -5/2
2) 3 x (-5/2) - 1 = - 15/2 - 2/2 = - 17/2
3) 7 + 2 x (-5/2) = 7 - 5 = 2
4) 2 x (-17/2) = -17
5) = - 17