Notăm:
s = prețul unui kg de struguri;
p = prețul unui kg de piersici.
[tex]\it s>p\ de\ 2\ ori \Rightarrow s=2p\ \ \ \ (*)\\ \\ 14s+6p=374 \stackrel{(*)}{\Longrightarrow } 14\cdot2p+6p=374 \Rightarrow 34p=374|_{:34} \Rightarrow p=11\ \ell ei[/tex]
[tex]\it p=11\stackrel{(*)}{\Longrightarrow}\ s=2\cdot11=22\ \ell ei[/tex]