Răspuns :
[tex] \frac{3x + 5}{2} + 5 = > (il \: amplificam \: pe \: 5 \: cu \: 2) = > \frac{3x + 5}{2} + \frac{10}{2} = \frac{3x + 5 + 10}{2} = \frac{3x + 15}{2} [/tex]
[tex] \frac{3x + 5}{2} + 5 = > (il \: amplificam \: pe \: 5 \: cu \: 2) = > \frac{3x + 5}{2} + \frac{10}{2} = \frac{3x + 5 + 10}{2} = \frac{3x + 15}{2} [/tex]