Réponses

2014-10-16T11:33:48+02:00
10 : 9 + 69 * x - 50
1,11 + 69x - 50
48,89 + 69x
 69x = - 48,89
x = - 48,89/69
x ≈- 0,71
2014-10-16T11:55:53+02:00
10/9 +69 X x -50
1,11 +69x -50
69x = -1,11 -50
69x = - 51,11
x = - 51,11 / 69 ≈ - 0,74