Réponses

2014-10-20T22:55:44+02:00
A=-9+(-12)x5= -9-60
= -69

b=-7x9+2
= -63 +2
= -61
2014-10-20T22:59:40+02:00
A= -9 +(-12) x5
A= -9 + (-60)
A= -69

B= -7x9+2
B= -63+2
B= -61