Réponses

  • Utilisateur Brainly
2014-05-15T20:00:27+02:00

a) 3x = 27

x = 27/3 = 9

b) 6y= -54

y = -54/6 = -9

c) -7 = 14a

a= -7/14 = -0,5

d) -3t = -12

t = -12/-3 = 4

2014-05-15T20:01:18+02:00
Bonsoir

a) 3x = 27      x = 27/= 9

b) 6y= -54        y = -54/6 = - 9        

 c) -7 = 14a      a = -7/14 =  -1/2


d) -3t = -12
= 4