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Sagot :

BONJOUR1234567893
A= -6+10+8-5-(-7)+2
A=-6+10+8-5+7+2
A=-6-5+10+8+7+2
A=-11+27
A=16


B=(-5)+8+4-3+9-(-2)
B=-5+8+4-3+9+2
B=-5-3+8+4+9+2
B=-8+23


C= 9+(-7)+(+8)-4-2+5
C=9+(-7)+8-4-2+5
C=-7-4-2+9+8+5
C=-13+21
C=8

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