[tex]\it Adun\breve am\ \ ecua\c{\it t}iile:\\ \\ \[[x]+\{y\}+\[[y]+\{x\}=-5,31+2,7 \Rightarrow x+y=-2,61\ \ \ \ \ (*)\\ \\ \[[x]+\{y\}=-5,31 \Rightarrow \[[x]+\{y\}=-6+0,69 \Rightarrow \[[x]=-6,\ \ \{y\}=0,69\\ \\ \[[y]+\{x\}=2,7 \Rightarrow \[[y]+\{x\}=2+0,7 \Rightarrow \[[y]=2,\ \ \{x\}=0,7[/tex]
[tex]\it x= \[[x]+\{x\}=-6+0,7 \Rightarrow x=-5,3\\ \\ y= \[[y]+\{y\}=2+0,69 \Rightarrow y=2,69\\ \\ \\ x+y=-5,3+2,69=-2,61,\ care\ confirm\breve a\ rela\c{\it t}ia\ \ (*)[/tex]
