Question 298712
c, f, d, amount that each can eat


{{{system(2f=3c,2c=d,c+f+d=450)}}}


If possible wanted all as a variable in f.


{{{c=2f/3}}}


then {{{d=2c=2*(2f/3)=4f/3}}}


Now, one single equation in f.
{{{highlight_green(2f/3+f+4f/3=450)}}}


{{{6f/3+f=450}}}
{{{2f+f=450}}}
{{{3f=450}}}
{{{highlight(f=150)}}}