Răspuns :
Răspuns:
3v+8=5(v-2)
3v+8=5v-10
8+10=5v-3v
2v=18=>v=18:2=>v=9 vaze (ani are Iulia)
f=3v+8
f=3·9+8=>f=35 flori (ani are mama)
Notare : x-vaze , y-flori
3x+8=y
y=5(x-2) => 5x-10
3x-5x= -10-8 => -2x= -18 => x=9
y=3x+8 => y=3*9+8 => y=27+8 => y=35
Mama are 35 ani (dupa numarul florilor )