Răspuns :
i - inghetata
p - prajitura
p=2i
i+2i=18
3i=18
i=18:3
i=6
p=2i=> p=2x6=> p=12
p - prajitura
p=2i
i+2i=18
3i=18
i=18:3
i=6
p=2i=> p=2x6=> p=12
i+p=18 i=2p rezulta 2p+p =18 3p=18 |:3 p =6 i =12 (i=inghetata , p=prajituri)