Exercice 9:
Complète
les égalités ci-dessous:
3
x
2
=
6
7
x
9
=
9
x
4
=
10
x
=
50
3
x
=
15
9
x
=
72
x
7
=
42
x
2
=
16
9
x
3
=
5
x
9
=
x
8
=
48
5
x
=
25
Vérifier
OK
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