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Sagot :

1g/1b/0/0/m1
2a+5c
ad+58
38(3+2c)
Bonsoir !

3.
a. a*1=1a=a
b. g*1=1g=g
c. 1*b=1b=b
d. d*0=0b=0
e. 0*c=0c=0
f. m*1=1m=m

4.
a. 2*a+5*c=2a+5c
b. a*d+5*8=ad+40
c. 38*(3+2*c)=38*(3+2c)=114+76c

Voilà :)

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