a=varsta ursuletului
b=varsta magarusului
[tex]a = \frac{b}{3} + 2 \\ a + b = 34 \\ \frac{b}{3} + 2 + b = 34 \\ \frac{b}{3} + b = 32 \\ \frac{b + 3b}{3} = 32 \\ 4b = 32 \times 3 = 96 \\ b = \frac{96}{4} = 24 \\ a = \frac{b}{3} + 2 = \frac{24}{3} + 2 = 8 + 2 = 10 \\ \\ verificare \: 24 + 10 = 34[/tex]