Răspuns :
c = valoarea unui caiet
=>cazul I. Dani are ... 2*c + 3 (lei)
cazul II. Dani are ... 3*c + 1 (lei)
⇒ 3c+1 = 2c+3
3c -2c=3 - 1
c = 2 (lei)
Inseamna ca , Dani are: 2×2+3 = 3×2+1= 7 lei
=>cazul I. Dani are ... 2*c + 3 (lei)
cazul II. Dani are ... 3*c + 1 (lei)
⇒ 3c+1 = 2c+3
3c -2c=3 - 1
c = 2 (lei)
Inseamna ca , Dani are: 2×2+3 = 3×2+1= 7 lei