Răspuns:
a=rosii
b=vinete
c=ardei
a+b+c=345
a=3b
c=a-19
c=3b-19
3b+b+3b-19=345
7b-19=345
7b=345+19
7b=364
b=364÷7
b=52
a=3b=3×52=156
c=a-19=156-19=137