👤

Dau coroana cine rezolva
urgeeent


Dau Coroana Cine Rezolvaurgeeent class=

Răspuns :

(5/3×6+7/2×4+x×2)/(6+4+2)=13
(10+14+2x)/2=13
24+2x=13×12
2x=156-24
2x=132
x=66