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Sagot :

R=9-(-5)+(-6)=8
S=9+(-5)-7=-3
T=7-(-6)-9=4
V=8+(-3)+4=9


A=-7-30=-37
B= -2x-6=12
c= 32+9=41
d= 4x17=68
Exercice 1
R= 9+5-6
R=8

T=7+6-9
T=4

S=9-5-7
S=-3

V=8-3+4
V=9

Exercice2

À= -7-30
= -37

B = -2x(-6)
=12

C=32+9
=41

D=4x(8+9)
D=44

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