Question 1180653
c, coffee cups
d, donuts


{{{system(2c+1.5d=141.5,c+d=80)}}}


{{{system(2c+1.5d=141.5,2c+2d=160)}}}


{{{E2-E1}}}{{{eliminates}}}{{{c}}};

{{{0.5d=18.5}}}

{{{highlight(d=37)}}}