Réponse:
Bo jour pas de problème
[tex]7 \times + 3 = 45 \\ 7 \times = 45 - 3 \\ 7 \times = 42 \\ \times = \frac{42}{7} = [/tex]
[tex]2 \times - 3 = 6 \times + 5 \\ 2 \times - 6 \times = 5 + 3 \\ - 4 \times = 8 \\ \times = \frac{8}{4} = [/tex]
[tex]6 \times + 2 = 4 - \times \\ 6 \times + \times = 4 - 2 \\ 7 \times = 2 \\ \times = \frac{2}{7} = [/tex]
