ex 5 6 pls e urgent


Răspuns:
6. 2x +12a= 0 3x-14=4 3x= 4+14=18 x= 18:3= 6 x= 6
inlocuim x-6 in 2x+12a=0 2*6+12a=0 12a= -12 a= 12:(-12)= -1
a=-1