Răspuns :
a+b=24+a,a-cutii mari,b-cutii mici
18a+12b=828
18a+12x24=828
18a=828-288=540
a=30
b=24
18a+12b=828
18a+12x24=828
18a=828-288=540
a=30
b=24
x+y=24+x⇒y=24
18x+12y=828
18x+12*24=828
18x+288=828
18x=828-288
18x=540
x==30
30 cutii mari
18x+12y=828
18x+12*24=828
18x+288=828
18x=828-288
18x=540
x==30
30 cutii mari