Réponse:
L= 15
i= -13
A= 20
O= -5
S= -14
G= 2
Explications étape par étape:
L= 13-(5-7) = 13-(-2)= 13+2= 15
i= -8-(12-7) = -8-5 = -13
A= 5-(2+3-17) = 5-(5-20) = 5-(-15) = 5+15 = 20
O= -2+(6-11)-(12-10) = 2+(-5)-(2) = 2-5-2 = 2-7 = -5
S= -1+(1-(16-7)-5) = -1+(1-9-5) = -1+(1-14) = -1+(-13) = -1-13 = -14
G= 2+(9-6-(13-10)+(11+7)) = 2+9-6-3+18 = 2+18-9-6-3 = 20-18 = 2