Réponse:
A=-5/6+11/6×18/22
A=-5/6+198/132
A=-5/6+198÷22/132÷22
A=-5/6+9/6
A=4/6
A=2/3
B=15/30×8
B=15÷15/30÷15×8
B=1/2×8
B=4
exercice 3:
C= 5×x+5×3
C=5x+3
D=-4×y-4×-1
D=-4y+4
E=6x×2x+6x×(-8)
E=12x²-48x
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Réponse:
A=-5/6+11/6×18/22
A=-5/6+198/132
A=-5/6+198÷22/132÷22
A=-5/6+9/6
A=4/6
A=2/3
B=15/30×8
B=15÷15/30÷15×8
B=1/2×8
B=4
exercice 3:
C= 5×x+5×3
C=5x+3
D=-4×y-4×-1
D=-4y+4
E=6x×2x+6x×(-8)
E=12x²-48x