Sagot :
Exercice 1:
A=5+6x(-2)
A=5+(-12)
A=-7
B=-1-12:(2-6)
B=-1-12:(-4)
B=-1+3
B=2
C= -4 +22 /-2 = 18/-2 =-9
A=5+6x(-2)
A=5+(-12)
A=-7
B=-1-12:(2-6)
B=-1-12:(-4)
B=-1+3
B=2
C= -4 +22 /-2 = 18/-2 =-9