Pouvez vous m'aider svp
H = (+12) -(-14) + (+18) + (-18) -(+3)
I=-(-3)-(+11)-(-5)+(+15)+(-7)
H = (+12) -(-14) + (+18) + (-18) -(+3)
I=-(-3)-(+11)-(-5)+(+15)+(-7)
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Bonjour
H = (+12) -(-14) + (+18) + (-18) -(+3)
H = 12 + 14 + 18 - 18 - 3
H = 12 + 14 - 3
H = 26 - 3
H = 23
I=-(-3)-(+11)-(-5)+(+15)+(-7)
I = - 3 - 11 + 5 + 15 - 7
I = - 3 - 11 - 7 + 5 + 15
I = - 21 + 20
I = - 1.