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Sagot :

bjr

A= (-6)+(-4)-(+6)-(-5)+(+4)

A= (-6)-6-(-5)

A= -6-6-(-5)

A= -6-6+5

A= -7

B= (+37)+(-5)-(-3)-(+15)+(+10)

B= 37-5-(-3)-15+10

B= 37-5+3-15+10

B= 30

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