Réponses

2014-03-11T18:54:47+01:00
A= 3(x+6)
a= 3x + 18

b= 5(6-y)
b= 30 - 5y

c= -7(2z-3)
c= -14z -21

d= -8(-5-3y)
d= 40 + 24y

e= 6(4x-9)
e= 24x - 54

f= -12(-5+3z)
f= 60 - 36z