[tex]1111a+11b+11c+d=6374
=\ \textgreater \ 1111a=6374=\ \textgreater \
a= \frac{6374}{1111} =5.73
[/tex]
[tex]11=6374=\ \textgreater \
b= \frac{6374}{11} =\ \textgreater \ b=579.45[/tex]
[tex]11c=6374=\ \textgreater \
c= \frac{6374}{11} =\ \textgreater \ c=579.45[/tex]
[tex]5.73+597.45+597.45+d=6374=\ \textgreater \ 1200.63+d=6374=\ \textgreater \
d=6374[/tex][tex]-1200.63=\ \textgreater \ d=5173.37[/tex]