Réponses

2014-10-29T16:03:49+01:00
A) x+4=11
x = 11 -4
x = 7

b) x-5=11
 x = 11 + 5
x = 16

c) x*+4=11. *= 2 


d) x*-5=11. x*=+7
2014-10-29T16:05:18+01:00