Simple et redus les expressions suivantes, puis relle dans l'ordre les points correspondan
1. 5 x 3 =
2-6 + 4 + 2 + 7
3.3 +2=
4. (-2)(-) =
5. 3x - 2 - 3 - 9
6.2 X 6 =
7.3 - 5 =
8. XXI =
9. 2x x 4 =
10. = 7* -r-72)
11. 2x x 2x + 2x) =
12. 5x – 2x + 5 =
13. -5 + 7 + 7 + 6
14. 2x - x =
15. -4 + 6 + 6 2x
16.5 x 3r =
17. -5 - 3r =
18.5(-32)
19.2 + 6 - 2x =
20.-7x - x =
21.(-3x)(-5x) =
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