a=ceapa
b=cartofi
c=rosii
5a+5b+2c=118000
4a+6b+3c=140000
b=a-2000
c=4b
a=b+2000
5(b+2000)+5b+2x4b=118000
5b+10000+5b+8b=118000
18b=118000-10000
18b=108000
b=108000:18
b=6000
c=4xb=4x6000=24000
a=b+2000=6000+2000=8000
5a+5b+2c=118000
5x8000+5x6000+2x24000=40000+30000+48000=118000
9a=9x8000=72000
9b=9x6000=54000
9c=9x24000=216000