Răspuns :
In primul: 9×2=18;
In al doilea: 72:9=8
In al treilea: 50-(18+8)=50-26=24.
In al doilea: 72:9=8
In al treilea: 50-(18+8)=50-26=24.
a=9*2...=>...a=18
b=72:9...=>..b=8
c=50-(18+8)....=> c=50-26...=>...c=24
18+8+24=50 elevi in total