Réponses

  • Utilisateur Brainly
2013-06-02T12:04:44+02:00

a=11+2(x-6)

   =11+2x-12

   =2x-1

 

b=-3(2y-4)-2y

  =-6y+12-2y

  =-8y+12

 

c=7-4(8-2a)+a

  =7-32+8a+a

  =9a-25

2013-06-02T12:11:21+02:00

a= 11+2x-12  a=-1+2x   

b=-6y+12-2y   b=4y+12

c=7-32+6a +a   c=-25+7a