Ta có:
\(\left(m+n\right):2=2010\Rightarrow m+n=4020\)
\(\left(n+p\right):2=2020\Rightarrow n+p=4040\)
\(\left(p+m\right):2=2030\Rightarrow p+m=4060\)
\(\Rightarrow2\left(m+n+p\right)=4020+4040+4060=12120\Rightarrow m+n+p=6060\)\(\Rightarrow\left\{{}\begin{matrix}m=2020\\n=2000\\p=2040\end{matrix}\right.\)