bonjour
Programme A
n
- 3 n
- 3 n - 12
Programme B
n
2 n
2 n + 5
3 ( 2 n + 5 )
= 6 n + 15
on choisit - 8
A = - 8 * - 3 - 12 = 24 - 12 = 12
B = - 8 * 6 + 15 = - 48 + 15 = - 33
- 3 n - 12 = 6 n + 15
- 3 n - 6 n = 15 + 12
- 9 n = 27
n = - 3
A = B pour n = - 3
