Question

Gabruel si Daniel au 54 de timbre de colectie . Daniel are cu 12 timbre mai putine decat Gabriel . Aflati cate timbre are fiecare copil​

Answer 1

Răspuns:

g+d=54

d=g-12

g+g-12=54

2g=54+12

g=66:2

g=33 timbre are Gabriel

d=33-12=21 timbre are Daniel

Answer 2

Răspuns:

Daniel= Gabriel-12

Gabriel= Daniel+12

Daniel+Daniel+12=54 timbre

2· Daniel= 54-12

2·Daniel=42

Daniel= 42:2= 21 timbre

Gabriel= 21+12= 33 timbre

Raspuns

Daniel=21 timbre

Gabriel=33 timbre