[tex]a)(576+n)-179=587\\
=\ \textgreater \ 576+n=766=\ \textgreater \ n=766-576=\ \textgreater \ n=190\\\\
b)m-(315+129)=279\\
=\ \textgreater \ m-444=279=\ \textgreater \ m=279+444=\ \textgreater \ m=723\\\\
c)(913-p)-576=325\\
=\ \textgreater \ 913-p=901=\ \textgreater \ p=913-901=\ \textgreater \ p=12[/tex]
