February 2021 0 79 Report
CALCULER LES EXPRESSIONS ALGÉBRIQUE SUIVANTES EN DÉTAILLANT LES CALCULS. EXERCICE98

A=-2×[-3 (-2)]
B=25:(0,5-2)
C=(-50)×(-0,0158)×25×(-4)×2
D=-[3,5 (-2)]:(-7-4)

EXERCICE 99

TESTER L'ÉGALITÉ -x-4,5=3x+7,5 pour :

a) x=1
b) x=-3
c) x=-5,5
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