bonsoir
exercice 4
10
10 * - 3 = - 30
- 30 + 7 = - 23
- 23 * 2 = - 46
- 2
- 2 * - 3 = 6
6 + 7 = 13
13 *2 = 26
x
- 3 x
- 3 x + 7
2 ( - 3 x + 7 )
= - 6 x + 14
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bonsoir
exercice 4
10
10 * - 3 = - 30
- 30 + 7 = - 23
- 23 * 2 = - 46
- 2
- 2 * - 3 = 6
6 + 7 = 13
13 *2 = 26
x
- 3 x
- 3 x + 7
2 ( - 3 x + 7 )
= - 6 x + 14
*-3=12
+7=19
19*2=38