Question

De ziua ei,Andreea a primit 4 buchete de garoafe si 2 buchete de trandafiri.Stiind ca fiecare buchet contine cate 3 fire de flori,afla cate fire a primit in total Andreea.rezolvare in doua moduri
  

Answer 1

 (4x3) +(2x3)
12+6
18 fire      
 
 1buchet......3 fire
 4buchete....x fire          
x=$\frac{4x3}{1} = \frac{12}{1} =12$
1buchet...3 fire
2buchete...x fire
x=$\frac{2x3}{1} = \frac{6}{1} =6$
 si 12+6=18 fire