Réponses

2014-05-11T11:59:53+02:00
A) 4x = 2× +7 -5
4× = 2× +2

b) 3× = 2× +25 +11
3× = 2× +36
3× = 7 × = 7/3 / 5R = -3 R = -3/5 / -2a = 6 a = 6/2 a = 3 / 4a = -12 a = -12/4 a = -3